polynomials, expressions, and formulas or, how i learned to stop worrying and love the variable
TRANSCRIPT
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Polynomials, Expressions, and FormulasOr, How I Learned to Stop Worrying and Love the Variable
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OverviewWe begin this module with a study of numbers and the basic operations of addition, subtraction, multiplication, and division. The algebraic properties of these operations are introduced along with the conventions for the order in which the operations are performed in mathematical expressions. Lessons are included on numerical and variable expressions, as well as on writing, evaluating, and simplifying these expressions. These concepts are extended to polynomials, with lessons on simplifying, adding, subtracting, multiplying, dividing, and factoring polynomials. There are also lessons on more general formulas, including evaluating and rewriting formulas.
On the following Topics slide there is a link to a table of contents for each topic. Clicking on a link on a Contents slide will take you to the first lesson slide for that topic. In many cases, there will be more than one slide on that topic. Work through as many as you need to master the topic, and then go on to the next topic. Clicking on the heading for a slide will take you back to the Contents slide for that topic; clicking on Return to Topics List on the Contents slide will take you back to the main Topics page.
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Topics• Sets of Real Numbers• Properties of Operations• Order of Operations• Numerical Expressions• Variables and Expressions• Writing Variable Expressions• Evaluating Variable Expressions• Simplifying Variable Expressions• Polynomial Expressions• Polynomial Multiplication• Polynomial Division• Factoring Polynomials• Formulas & Polynomials in Two (or more) Variables• Polynomial Functions
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Sets of Real Numbers• Description and examples of subsets of the set of real
numbers, including the rational numbers and irrational numbers
• Subsets of the Real Numbers• Recognizing Irrational and Rational Numbers• Interactive Practice Problems: Recognizing Rational and Irratio
nal NumbersReturn to Topics List
CONTENTS:
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Link: Number Sets
• Khan Academy video giving definitions of the various subsets of the real numbers
• Subsets include natural numbers, whole numbers, integers, rational numbers, and irrational numbers, with examples of numbers in each subset
• Time 5:17
Sets of Real Numbers
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Link: Real Numbers
• Mathispower4u video on sets of real numbers• Describes various sets of real numbers, size comparison of real
numbers, and absolute values• Time 9:07
Sets of Real Numbers
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Link: Recognizing Irrational Numbers
• Khan Academy video explaining the difference between rational and irrational numbers
• Time 2:18
Sets of Real Numbers
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Link: Recognizing Rational and Irrational Numbers
• Khan Academy interactive practice problems on recognizing rational and irrational numbers
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Sets of Real Numbers
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Properties of Operations• Descriptions and examples of properties of operations on numbers,
including commutative, associative, and distributive laws; identities and inverses for multiplication and addition
• Terminology of Properties of Numbers • Commutative Property of Addition• Commutative Property of Multiplication• Associative Law of Addition• Associative Law of Multiplication• Identity Properties of 0 and 1• Inverse Properties of Addition and Multiplication• The Distributive Property • Interactive Practice Problems: Distributive PropertyReturn to Topics List
CONTENTS:
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Link: Properties of Numbers 1
• Khan Academy video examples recognizing the associative and commutative properties of arithmetic
• Time 2:03
Properties of Operations
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Link: Number Properties Terminology 1
• Khan Academy video examples recognizing the distributive, associative, and commutative properties of arithmetic
• Time 3:05
Properties of Operations
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Link: Properties of Numbers 2
• Khan Academy video examples recognizing the properties of arithmetic
• Time 1:52
Properties of Operations
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Link: Commutative Law of Addition
• Khan Academy video example applying the commutative and associative laws of addition to rewrite a number expression
• Time 1:40
Properties of Operations
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Link: Commutative Property for Addition
• Khan Academy video example applying the commutative and associative laws of addition to rewrite a number expression
• Time 3:23
Properties of Operations
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Link: Commutative Property of Multiplication
• Khan Academy video example applying the commutative law of multiplication to rewrite a number expression
• Time 1:48
Properties of Operations
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Link: Associative Law of Addition
• Khan Academy video example applying the associative law of addition to rewrite a number expression
• Time 2:10
Properties of Operations
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Link: Associative Law of Multiplication
• Khan Academy video example applying the associative law of multiplication to rewrite a number expression
• Time 2:15
Properties of Operations
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Link: Identity Property of 0
• Khan Academy video examples demonstrating the additive identity property of 0
• Uses the method of the number line and absolute values when adding a zero in a numerical expression with more than one operation
• Time 4:46
Properties of Operations
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Link: Identity Property of 1
• Khan Academy video examples demonstrating the multiplicative identity property of 1, explaining that you always get the original term number as the answer
• Time 1:24
Properties of Operations
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Link: Identity Property of 1 (Second Example)
• Khan Academy video with more examples demonstrating the multiplicative identity property of 1
• Time 1:55
Properties of Operations
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Link: Inverse Property of Addition
• Khan Academy video examples of using the additive inverse to move from a given number back to zero
• The number line method is used to visualize the impact of adding the opposite of the given number
• Time 2:59
Properties of Operations
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Link: Inverse Property of Multiplication
• Khan Academy video examples demonstrating the multiplicative inverse property
• Uses the operation of division and builds to multiplication by the reciprocal
• Time 3:16
Properties of Operations
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Link: The Distributive Property
• Khan Academy video example demonstrating the distributive property of multiplication over addition, with an explanation of why the distributive property works
• Time 4:56
Properties of Operations
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Link: The Distributive Property 2
• Khan Academy video example demonstrating the distributive property of multiplication over subtraction
• Time 2:11
Properties of Operations
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Link: The Distributive Property Example 1
• Khan Academy video examples demonstrating the distributive property in several algebraic expressions
• Examples require combining like terms and distributing fractions
• Time 5:39
Properties of Operations
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Link: Distributive Property Exercise
• Khan Academy video examples demonstrating the distributive property of multiplication over addition in numerical expressions
• One problem reviews factoring the greatest common divisor and writing a distributive expression
• Time 3:03
Properties of Operations
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Link: The Distributive Property
• Math Planet text and video examples demonstrating the distributive property in several situations
• Time 1:41
Properties of Operations
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Link: Distributive Property
• Khan Academy interactive practice problems on the distributive property
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Properties of Operations
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Order of Operations• Descriptions and examples of the conventions on the order of
operations in numerical and variable expressions• Introduction to Order of Operations• Order of Operations Examples• Order of Operations With and Without Parentheses• Interactive Practice Problems: Order of Operations• Interactive Practice Problems: Expressions With ParenthesesReturn to Topics List
CONTENTS:
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Link: Introduction to Order of Operations
• Khan Academy video introducing the order of operations on numbers
• Examples show the impact of the agreed upon order for simplifying numerical expressions
• Examples also explain operations at the same level and the “left to right” rule
• Time 9:40
Order of Operations
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Link: The Order of Operations
• Mathispower4u video introducing the order of operations on numbers
• Includes several examples applying the order of operations to simplify expressions
• Time 6:31
Order of Operations
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Link: Order of Operations
• Khan Academy video example applying the order of operations on numbers to simplify a numerical expression
• Time 4:27
Order of Operations
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Link: Order of Operations with Exponents
• Khan Academy video example applying the order of operations on numbers
• Time 4:36
Order of Operations
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Link: More Complicated Order of Operations Example
• Khan Academy video advanced example applying the order of operations to a numerical expression involving parentheses
• Time 5:20
Order of Operations
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Link: Order of Operations Examples
• Khan Academy video advanced examples applying the order of operations on numbers
• Time 14:23
Order of Operations
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Link: Evaluating an Expression With and Without Parentheses
• Khan Academy video example demonstrating the effect of parentheses on the order of operations of numbers
• Time 2:06
Order of Operations
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Link: Order of Operations
• Khan Academy interactive practice problems on order of operations of numbers
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Order of Operations
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Link: Order of Operations with Negative Numbers
• Khan Academy interactive practice problems on order of operations of numbers
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Order of Operations
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Link: Expressions With Parentheses
• Khan Academy interactive practice problems on evaluating numerical expressions containing parentheses
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Order of Operations
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Numerical Expressions• Examples and interactive problems on writing numerical
expressions from verbal phrases• Constructing Numerical Expressions Example• Interactive Practice Problems: Writing Numerical ExpressionsReturn to Topics List
CONTENTS:
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Link: Constructing Numerical Expressions Example
• Khan Academy Video example constructing a numerical expression from a verbal phrase
• Time 1:22
Numerical Expressions
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Link: Writing Numerical Expressions with Exponents
• Khan Academy interactive practice problems on writing numerical expressions from verbal phrases
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Numerical Expressions
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Link: Writing Numerical Expressions with Exponents Word Problems
• Khan Academy interactive practice problems on writing numerical expressions with exponents from word problems
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Numerical Expressions
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Variables and Expressions• Description and examples of variables and expressions• What is a Variable?• Introduction to Variables and Expressions• Notations for Multiplication With VariablesReturn to Topics List
CONTENTS:
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Link: What is a Variable?
• Khan Academy video example introducing the concept of a variable
• Time 3:18
Variables and Expressions
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Link: Introduction to Variables and Variable Expressions
• Mathispower4u video introducing and explaining the concepts of variables and variable expressions
• Also explains the difference between an expression and an equation
• Includes examples of • writing variable expressions from verbal phrases• evaluating a variable expression at a number
• Time 7:55
Variables and Expressions
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Link: Why Aren't We Using the Multiplication Sign?
• Khan Academy video examples demonstrating the use of variables and various notation for multiplication with variables
• Time 4:58
Variables and Expressions
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Writing Variable Expressions• Translating verbal phrases into mathematical expressions• Constructing Algebraic Expressions from Verbal Phrases• Writing an Equation from a Word Problem• Interactive Practice Problems: Writing Simple Variable Expressi
ons• Interactive Practice Problems: Writing Compound Variable Exp
ressions• Interactive Practice Problems: Writing Expressions from Word
Problems Return to Topics List
CONTENTS:
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Link: How Do You Turn a Simple Verbal Phrase Into an Algebraic Expression?
• Virtual Nerd video introduction to translating verbal phrases into algebraic expressions
• Examples are given of very basic phrases that require each of the operations of addition, subtraction, multiplication, and division
• Translates words such as sum, total, difference, product, quotient, and ratio
• Time 3:36
Writing Variable Expressions
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Link: How Do You Turn a Longer Verbal Phrase Into an Algebraic Expression?
• Virtual Nerd video example of translating a verbal phrase into an equation
• The example given is a compound phrase involving addition, multiplication, and fractions
• This example is also used in the video How Do You Write an Equation from a Word Problem?
• Time 5:10
Writing Variable Expressions
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Link: Ex 1: Writing Basic Algebraic Expressions
• Mathispower4u video introduction to translating verbal phrases into algebraic expressions
• Examples are given of very basic phrases that require each of the operations of addition and subtraction
• Time 1:59
Writing Variable Expressions
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Link: Ex 2: Writing Basic Algebraic Expressions
• Mathispower4u video example of translating a verbal phrase into an algebraic expression
• Example expresses the remaining part of a total distance in terms of the total and a given part of the total
• Time 2:35
Writing Variable Expressions
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Link: Writing Expressions 1
• Khan Academy video examples writing variable expressions from verbal phrases
• Vocabulary reviewed in the examples includes quantity, sum, and product translated into mathematical expressions
• Time 1:38
Writing Variable Expressions
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Link: Writing Expressions 2
• Khan Academy video examples writing variable expressions from verbal phrases
• Time 2:45
Writing Variable Expressions
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Link: Writing Expressions 2 Exercise Example
• Khan Academy video multiple choice example writing a variable expression from a verbal phrase
• Explains why some selections are incorrect and one is correct• Time 2:23
Writing Variable Expressions
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Link: Writing Expressions 3 Exercise Example 1
• Khan Academy video example writing an expression in two variables from a complex word problem
• Time 2:24
Writing Variable Expressions
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Link: Writing Expressions 3 Exercise Example 2
• Khan Academy video example writing an expression in one variable from a verbal phrase
• Example involves a word problem about volumes of cubes• Time 1:20
Writing Variable Expressions
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Link: Writing Expressions 3 Exercise Example 3
• Khan Academy video example writing an expression in several variables from a verbal phrase
• Time 0:43
Writing Variable Expressions
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Link: How Do You Write an Equation from a Word Problem?
• Virtual Nerd video example of translating the phrases in a “word problem” into variables and an equation
• See also the video How Do You Turn a Longer Verbal Phrase Into an Algebraic Expression?
• Time 4:00
Writing Variable Expressions
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Link: Connect English with Mathematics and Graphing Lines (Part 1)
• AlRichards314 video introduction to translating verbal phrases into algebraic expressions
• Examples are given of translating very basic phrases including phrases such as “increased by” and “decreased by”
• Also includes translation of a word problem into a system of two linear equations
• Time 5:19
Writing Variable Expressions
![Page 62: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/62.jpg)
Link: Writing Expressions
• Khan Academy interactive practice problems on writing simple variable expressions from verbal phrases
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Writing Variable Expressions
![Page 63: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/63.jpg)
Link: Writing Expressions 2
• Khan Academy interactive practice problems on writing compound variable expressions from verbal phrases
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Writing Variable Expressions
![Page 64: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/64.jpg)
Link: Writing Expressions with Variables Word Problems
• Khan Academy interactive practice problems on writing variable expressions from word problems
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Writing Variable Expressions
![Page 65: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/65.jpg)
Evaluating Variable Expressions• Description and examples of evaluating variable expressions
by substituting specific numbers for the variables• Evaluating Algebraic Expressions• Evaluating Expressions With Two Variables• Evaluating Expressions Where Individual Variable Values are U
nknown • Evaluating Expressions in Word Problems• Interactive Practice Problems: Evaluating Expressions in One V
ariable• Interactive Practice Problems: Evaluating Expressions in Two V
ariables• Interactive Practice Problems: Evaluating Expressions With Var
iables in Word ProblemsReturn to Topics List
CONTENTS:
![Page 66: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/66.jpg)
Link: Evaluating Algebraic Expressions
• Mathispower4u video examples introducing evaluating various types of algebraic expressions at specific numbers
• Defines variable expressions and reviews order of operations• Steps use substitution, order of operations, exponents, and
fractions• Time 7:52
Evaluating Variable Expressions
![Page 67: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/67.jpg)
Link: Evaluating Expressions With One Variable
• Khan Academy video of very basic examples of evaluating algebraic expressions at specific numbers
• Time 3:21
Evaluating Variable Expressions
![Page 68: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/68.jpg)
Link: Example: Evaluating an Expression
• Khan Academy video example of evaluating an algebraic expression at specific numbers
• Time 2:00
Evaluating Variable Expressions
![Page 69: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/69.jpg)
Link: Expressions With Two Variables
• Khan Academy video examples introducing evaluating expressions in two variables
• Time 1:58
Evaluating Variable Expressions
![Page 70: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/70.jpg)
Link: Example: Evaluating Expressions With 2 Variables
• Khan Academy video example of evaluating an algebraic expression with two variables at specific numbers
• Time 1:46
Evaluating Variable Expressions
![Page 71: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/71.jpg)
Link: Ex: Evaluate a Variable Expression with Exponents and Fractions
• Mathispower4u video example of substituting values into an expression with exponents and fractions
• Reviews order of operations• 2:33
Evaluating Variable Expressions
![Page 72: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/72.jpg)
Link: Examples of Evaluating Variable Expressions
• Khan Academy video examples of evaluating algebraic expressions of many types
• Time 12:26
Evaluating Variable Expressions
![Page 73: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/73.jpg)
Link: Evaluating Expressions Where Individual Variable Values are Unknown
• Khan Academy video examples of evaluating variable expressions where relationships between the variables are known but individual variable values are not
• 4:39
Evaluating Variable Expressions
![Page 74: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/74.jpg)
Link: Evaluating Expressions with Unknown Variables 2
• Khan Academy video examples of evaluating variable expressions where relationships between the variables are known but individual variable values are not
• 3:00
Evaluating Variable Expressions
![Page 75: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/75.jpg)
Link: Example Evaluating Expressions in Word Problems
• Khan Academy video example of evaluating an algebraic expression in a word problem
• Time 3:24
Evaluating Variable Expressions
![Page 76: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/76.jpg)
Link: Evaluating Expressions in One Variable
• Khan Academy interactive practice problems on evaluating algebraic expressions in one variable
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Evaluating Variable Expressions
![Page 77: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/77.jpg)
Link: Evaluating Expressions in Two Variables
• Khan Academy interactive practice problems on evaluating algebraic expressions in two variables
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Evaluating Variable Expressions
![Page 78: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/78.jpg)
Link: Evaluating Expressions With Variables in Word Problems
• Khan Academy interactive practice problems on evaluating algebraic expressions in word problems
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Evaluating Variable Expressions
![Page 79: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/79.jpg)
Simplifying Variable Expressions• Description and examples of using properties of operations
and combining like terms to simplify variable expressions• Combining Like Terms • Equivalent Forms of Expressions • Interactive Practice Problems: Equivalent Forms of ExpressionsReturn to Topics List
CONTENTS:
![Page 80: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/80.jpg)
Link: Combining Like Terms
• Khan Academy video explaining like terms and how to combine like terms
• 4:32
Simplifying Variable Expressions
![Page 81: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/81.jpg)
Link: Adding Like Rational Terms
• Khan Academy video example of combining two variable expressions with fractions
• 1:14
Simplifying Variable Expressions
![Page 82: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/82.jpg)
Link: Combining Like Terms 1
• Khan Academy video example of combining like terms to simplify an algebraic expression
• 3:06
Simplifying Variable Expressions
![Page 83: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/83.jpg)
Link: Combining Like Terms 2
• Khan Academy video example of combining like terms to simplify a complex variable expression
• Reviews commutative property of addition to group like terms by changing the order
• 3:43
Simplifying Variable Expressions
![Page 84: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/84.jpg)
Link: Equivalent Forms of Expressions 1
• Khan Academy video with multiple choice examples using properties of operations to find simpler equivalent forms of algebraic expressions
• Reviews the distributive and commutative properties and explains why some of the expressions are not equivalent
• 5:32
Simplifying Variable Expressions
![Page 85: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/85.jpg)
Link: Equivalent Forms of Expressions 1
• Khan Academy interactive practice problems on simplifying algebraic expressions using distributive and commutative properties and combining like terms
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Simplifying Variable Expressions
![Page 86: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/86.jpg)
Polynomial Expressions• Introduction to polynomial expressions, including terminology,
simplifying, adding and subtracting• Definitions and Terminology• Combining Like Terms to Simplify Polynomials• Adding and Subtracting Polynomials• Interactive Practice Problems: Adding and Subtracting Polyno
mials• Operations with Polynomials CalculatorReturn to Topics List
CONTENTS:
![Page 87: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/87.jpg)
Link: Polynomials: Definitions / Evaluation
• Purplemath text lesson on the terminology of polynomials • Includes definitions of term, degree, coefficient, constant term,
leading term, polynomial, and monomial• Also introduces • evaluation of a polynomial at a specific number• simplifying by combining like terms
Polynomial Expressions
![Page 88: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/88.jpg)
Link: Polynomial Expressions 1 - Explaining Polynomial Expressions
• Tutortag video introducing the terminology of polynomials • Includes definitions of coefficient, polynomial, monomial,
binomial, and trinomial• Time 2:43
Polynomial Expressions
![Page 89: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/89.jpg)
Link: Terms, Coefficients, and Exponents in a Polynomial
• Khan Academy video introducing the terminology of polynomials via an example
• Includes identification of terms, coefficients, and exponents • Time 2:36
Polynomial Expressions
![Page 90: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/90.jpg)
Link: Ex: Intro to Polynomials in One Variable
• Mathispower4u video introducing the terminology of polynomials via an example
• Includes definition of polynomial and identification of terms, degrees, coefficients, leading term, and the degree of a polynomial
• Time 2:59
Polynomial Expressions
![Page 91: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/91.jpg)
Link: Combining Like Terms
• Mathispower4u video introducing like terms and simplifying polynomials by combining like terms
• Includes definition of like terms and examples of like terms and unlike terms
• Discusses the distributive law and its role in combining like terms, as well as how combining like terms is done in practice
• Includes examples of simplifying polynomials in one or two variables
• Time 4:49
Polynomial Expressions
![Page 92: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/92.jpg)
Link: Simply a Polynomial
• Khan Academy video example of simplifying a polynomial by combining like terms
• Explains the difference between like and unlike terms• Time 3:37
Polynomial Expressions
![Page 93: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/93.jpg)
Link: Addition and Subtraction of Polynomials
• Khan Academy video introducing addition and subtraction of polynomials by combining like terms
• Includes an explanation of what a polynomial is, plus terminology such as term, constant term, degree, coefficient, and standard form
• Examples include• addition of polynomials in one variable by combining like terms• subtraction of polynomials in two variables by first distributing
the minus sign and then combining like terms• constructing polynomials representing areas of figures
• Time 15:59
Polynomial Expressions
![Page 94: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/94.jpg)
Link: Simplifying Algebraic Expressions
• Mathispower4u video introducing using the distributive property to clear parentheses and combining like terms in polynomial expressions
• Reviews the distributive property• Reviews multiplicative property of -1 (i.e., -1∙a = -a) and the
opposite of a sum (i.e., distributing a minus sign across a sum)• Includes examples of simplifying expressions• Time 5:24
Polynomial Expressions
![Page 95: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/95.jpg)
Link: Simplify Polynomial Expressions - Add/Subtract/Multiply
• Mathispower4u video examples of simplifying polynomials• Examples include• adding and subtracting polynomials by clearing parentheses and
combining like terms• distributing a constant across a sum to clear parentheses• distributing a non-constant monomial across a sum
• Time 4:22
Polynomial Expressions
![Page 96: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/96.jpg)
Link: Adding and Subtracting Polynomials
• Purplemath text lesson on adding and subtracting polynomials• Includes examples of • adding polynomials (both horizontally and vertically) by clearing
parentheses and combining like terms• subtracting polynomials (both horizontally and vertically) by
distributing the minus sign (or -1) across a sum to clear parentheses and then combining like terms
Polynomial Expressions
![Page 97: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/97.jpg)
Link: How Do You Add Polynomials?
• Virtual Nerd video example of adding polynomials• Gives step-by-step instructions to• rewrite the sum without parentheses• identify the like terms• group like terms• combine like terms• rewrite the sum in standard form
• Time 4:59
Polynomial Expressions
![Page 98: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/98.jpg)
Link: Adding Polynomials
• Mathispower4u video examples of adding polynomials by clearing parentheses and combining like terms
• Time 5:09
Polynomial Expressions
![Page 99: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/99.jpg)
Link: How Do You Subtract Polynomials?
• Virtual Nerd video example of subtracting polynomials• Gives step-by-step instructions to• distribute the minus sign to remove parentheses• identify the like terms• group like terms• combine like terms
• Time 2:07
Polynomial Expressions
![Page 100: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/100.jpg)
Link: Subtracting Polynomials
• Mathispower4u video examples of subtracting polynomials by distributing a -1 to clear parentheses and combining like terms
• Time 4:43
Polynomial Expressions
![Page 101: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/101.jpg)
Link: Adding and Subtracting Polynomials 1
• Khan Academy video example of adding polynomials by clearing parentheses and combining like terms
• Time 2:01
Polynomial Expressions
![Page 102: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/102.jpg)
Link: Adding and Subtracting Polynomials 2
• Khan Academy video example of subtracting polynomials by distributing a -1 to clear parentheses and combining like terms
• Time 1:43
Polynomial Expressions
![Page 103: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/103.jpg)
Link: Adding and Subtracting Polynomials 3
• Khan Academy video example of adding and subtracting polynomials in one expression by clearing parentheses and combining like terms
• Time 2:27
Polynomial Expressions
![Page 104: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/104.jpg)
Link: Practice Adding/Subtracting Polynomials
• Khan Academy interactive practice problems on simplifying sums and differences of polynomials
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Polynomial Expressions
![Page 105: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/105.jpg)
Link: Operations with Polynomials Calculator
• Math Portal polynomial operation calculator• Enter two polynomials and the calculator will add, subtract,
multiply, or divide the polynomials as requested• Calculator can also generate examples• A complete step-by-step solution is given if requested
Polynomial Expressions
![Page 106: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/106.jpg)
Polynomial Multiplication• Description and examples of multiplying polynomials,
including special products• Multiplying Monomials• Multiplying Monomials by Polynomials • Multiplying Binomials; FOIL Method• Special Products of Binomials: Squares and Conjugates• Multiplying a Binomial and a Trinomial• General Multiplication of Polynomials• Interactive Practice Problems: Multiplying Simple Polynomials• Interactive Practice Problems: Multiplying General Polynomial
s• Operations with Polynomials CalculatorReturn to Topics List
CONTENTS:
![Page 107: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/107.jpg)
Link: Multiplying Monomials
• Mathispower4u video examples of multiplying monomials and raising a monomial to a power using the laws of exponents
• Time 2:53
Polynomial Multiplication
![Page 108: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/108.jpg)
Link: How Do You Multiply Monomials?
• Virtual Nerd video example simplifying a product of three monomials in two variables by regrouping the factors and using laws of exponents
• Time 1:20
Polynomial Multiplication
![Page 109: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/109.jpg)
Link: Multiplying Monomials by Polynomials
• Khan Academy video example of multiplying a monomial by a trinomial, using the distributive property and laws of exponents
• Time 2:43
Polynomial Multiplication
![Page 110: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/110.jpg)
Link: How Do You Multiply a Monomial by a Polynomial?
• Virtual Nerd video example of multiplying a monomial by a trinomial in two variables, using the distributive property and laws of exponents
• Time 1:27
Polynomial Multiplication
![Page 111: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/111.jpg)
Link: Ex: Multiplying Using the Distributive Property
• Mathispower4u video examples of multiplying monomials by polynomials, using the distributive property and laws of exponents
• Time 2:54
Polynomial Multiplication
![Page 112: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/112.jpg)
Link: Simple Polynomial Multiplication
• Purplemath text lesson introducing multiplication of polynomials
• Topics and examples include• multiplication of monomials using laws of exponents• multiplication of a monomial by a polynomial using the
distributive law and laws of exponents• multiplication of two binomials horizontally using the distributive
law, vertically, and using the “FOIL” method• multiplication of polynomials with more than two terms
horizontally and vertically
Polynomial Multiplication
![Page 113: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/113.jpg)
Link: FOIL for Multiplying Binomials
• Khan Academy video example of multiplying two binomials, first using the “FOIL” method and then using the distributive law twice
• Time 5:47
Polynomial Multiplication
![Page 114: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/114.jpg)
Link: Multiplying Binomials
• Mathispower4u video examples of multiplying two binomials using the distributive property and the “FOIL” method
• Time 4:12
Polynomial Multiplication
![Page 115: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/115.jpg)
Link: Special Products of Binomials
• Khan Academy video on squaring binomials and the product of a sum and a difference of two terms
• Topics include both specific examples and general formulas for• the square of a binomial• the product of the sum of two terms and the difference of the
same two terms• Time 10:36
Polynomial Multiplication
![Page 116: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/116.jpg)
Link: Ex: Squaring Binomials
• Mathispower4u video examples of squaring binomials by using the standard methods for multiplying binomials
• Also introduces formulas for squaring binomials without examples
• Time 3:22
Polynomial Multiplication
![Page 117: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/117.jpg)
Link: Ex: Multiplying Binomial Conjugates - Special Binomial Products
• Mathispower4u video examples of the product of the sum of two terms and the difference of the same two terms using the standard methods for multiplying binomials
• Also defines conjugates and introduces the formula for a product of conjugates without examples
• Time 2:54
Polynomial Multiplication
![Page 118: Polynomials, Expressions, and Formulas Or, How I Learned to Stop Worrying and Love the Variable](https://reader037.vdocument.in/reader037/viewer/2022103015/55165eed550346a2698b50cb/html5/thumbnails/118.jpg)
Link: Special Products of Polynomials 1
• Khan Academy video on the product of the sum of two terms and the difference of the same two terms
• Derives and explains a general formula for such a product• Includes an example using the formula• Time 2:29
Polynomial Multiplication
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Link: Ex: Polynomial Multiplication Involving Binomials and Trinomials
• Mathispower4u video examples of multiplying polynomials• Examples are• product of three factors: a monomial and two binomials• product of a binomial and a trinomial
• Time 3:35
Polynomial Multiplication
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Link: Multiplying Polynomials
• Khan Academy video example multiplying a binomial by trinomial first horizontally using the distributive law twice, and then vertically
• Time 5:46
Polynomial Multiplication
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Link: More Multiplying Polynomials
• Khan Academy video example multiplying a binomial by trinomial using the distributive law twice
• Time 2:34
Polynomial Multiplication
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Link: Multiplying Polynomials 3
• Khan Academy video example multiplying a binomial by trinomial using the distributive law twice
• The product of the polynomials is introduced as representing a volume
• Time 4:19
Polynomial Multiplication
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Link: Multiplication of Polynomials
• Khan Academy video examples of multiplying various types of polynomials
• Types of examples include• monomial times polynomial• binomial times binomial• binomial times trinomial, multiplied vertically
• Time 9:49
Polynomial Multiplication
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Link: Multiplying Polynomials 1
• Khan Academy interactive practice problems on multiplying simple polynomials
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Polynomial Multiplication
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Link: Multiplying Polynomials 2
• Khan Academy interactive practice problems on multiplying more complicated polynomials
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Polynomial Multiplication
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Link: Operations with Polynomials Calculator
• Math Portal polynomial operation calculator• Enter two polynomials and the calculator will add, subtract,
multiply, or divide the polynomials as requested• Calculator can also generate examples• A complete step-by-step solution is given if requested
Polynomial Multiplication
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Polynomial Division• Description and examples of dividing polynomials, including
long division and synthetic division• Polynomial Divided by a Monomial• Long Division of Polynomials• Synthetic Division• Operations with Polynomials CalculatorReturn to Topics List
CONTENTS:
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Link: Polynomial Divided by a Monomial
• Khan Academy video example dividing a polynomial by a monomial using the distributive property and laws of exponents
• Time 4:44
Polynomial Division
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Link: Ex: Divide a Polynomial by a Monomial
• Mathispower4u video examples dividing a polynomial by a monomial using the distributive property and laws of exponents
• Time 2:43
Polynomial Division
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Link: Polynomial Division
• Purplemath text lesson on dividing polynomials• Topics and examples include• Dividing a polynomial by a monomial• Factoring and “cancelling” (reducing a fraction)• Long division, with and without a remainder
Polynomial Division
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Link: Polynomial Division: Long Division
• Mathispower4u video of long division of a polynomial by a binomial
• Includes• review of long division of numbers• written procedure for long division of polynomials explained with
an example• further examples dividing a polynomial by a binomial
• Time 9:25
Polynomial Division
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Link: Polynomial Division
• Khan Academy video examples of long division of polynomials with remainders
• Time 12:09
Polynomial Division
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Link: Algebraic Long Division
• Khan Academy video with a (long) example of long division of polynomials
• Time 10:21
Polynomial Division
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Link: How to do Long Division with Polynomials
• Mathbff video examples of long division of polynomials with remainders
• Includes polynomials with “missing” terms• Time 11:13
Polynomial Division
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Link: Divide a Polynomial by a Degree Two Binomial
• Mathispower4u video example of long division of a polynomial by a degree two binomial with a remainder
• Time 4:14
Polynomial Division
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Link: Dividing Polynomials with Remainders
• Khan Academy video example of long division of polynomials with a remainder
• Includes a dividend with a “missing” term (i.e., 0 coefficient)• Includes checking the answer by multiplying and simplifying• Time 6:23
Polynomial Division
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Link: Polynomial Division: Synthetic Division
• Mathispower4u video introducing synthetic division of a polynomial by a binomial of the form x – k
• Includes • general explanation of the method of synthetic division • several explicit examples• example where the coefficient of x in the divisor is not 1
• Time 10:07
Polynomial Division
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Link: Synthetic Division
• Khan Academy video explaining synthetic division of a polynomial by a binomial of the form x + k via an example
• Time 5:21
Polynomial Division
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Link: How to Do Synthetic Division
• Mathbff video explaining synthetic division of a polynomial by a binomial of the form x - k via an example
• Time 6:35
Polynomial Division
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Link: Synthetic Division, Example 2
• Khan Academy video example of synthetic division of a polynomial by a binomial of the form x - k
• Includes a dividend with a “missing” term (i.e., 0 coefficient)• Time 5:00
Polynomial Division
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Link: Ex 2: Divide a Polynomial by a Binomial Using Synthetic Division
• Mathispower4u video example of synthetic division of a polynomial by a binomial of the form x + k
• Time 3:22
Polynomial Division
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Link: Ex 3: Divide a Polynomial by a Binomial Using Synthetic Division
• Mathispower4u video example of synthetic division of a polynomial by a binomial of the form x - k
• Includes a dividend with a “missing” term (i.e., 0 coefficient)• Time 3:13
Polynomial Division
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Link: Ex 4: Divide a Polynomial by a Binomial Using Synthetic Division
• Mathispower4u video example of synthetic division of a polynomial by a binomial of the form x + k
• Includes a dividend with a “missing” term (i.e., 0 coefficient)• Time 3:17
Polynomial Division
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Link: Operations with Polynomials Calculator
• Math Portal polynomial operation calculator• Enter two polynomials and the calculator will add, subtract,
multiply, or divide the polynomials as requested• Calculator can also generate examples• A complete step-by-step solution is given if requested
Polynomial Division
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Factoring Polynomials• Description and examples of factoring polynomials, including special
forms and factoring by grouping• Greatest Common Factor of Monomials• Factoring the GCF of Terms Out of a Polynomial • Factoring a Difference of Squares• Factoring a Sum or Difference of Cubes• Factoring Perfect Square Trinomials• Factoring Quadratic Polynomials and Trinomials• Interactive Practice Problems: Factoring Quadratics with Leading Coe
fficient 1 • Interactive Practice Problems: Factoring Quadratics with Leading Coe
fficient Not 1 • Factoring by Grouping• Interactive Practice Problems: Factoring by GroupingReturn to Topics List
CONTENTS:
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Link: How Do You Find the Greatest Common Factor of Monomials?
• Virtual Nerd video example finding the greatest common factor of 4 monomials in 2 variables
• Steps used in the example to find the GCF are• factor each monomial• identify common factors• list the common factors• multiply the common factors
• Time 3:52
Factoring Polynomials
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Link: Monomial Greatest Common Factor
• Khan Academy video example finding the greatest common factor of 2 monomials in 2 variables
• Time 3:13
Factoring Polynomials
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Link: Factor Expressions Using the GCF
• Khan Academy video example of factoring the greatest common factor of the terms out of a binomial in two variables
• Begins with a review of finding the GCF of two monomials• Time 5:28
Factoring Polynomials
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Link: Ex 1: Identify GCF and Factor a Binomial
• Mathispower4u video examples of factoring the greatest common factor of the terms out of binomials
• Includes finding the GCF of the terms• Time 4:16
Factoring Polynomials
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Link: Ex 2: Identify GCF and Factor a Trinomial
• Mathispower4u video examples of factoring the greatest common factor of the terms out of trinomials
• Includes finding the GCF of the terms• Time 6:40
Factoring Polynomials
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Link: How Do You Factor the Greatest Common Factor Out of a Polynomial?
• Virtual Nerd video example of factoring the greatest common factor of the terms out of a polynomial in two variables
• Includes finding the GCF of the terms• Time 4:19
Factoring Polynomials
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Link: Simple Polynomial Factoring
• Purplemath text lesson on basic polynomial factoring techniques
• Topics and examples include• factoring out the greatest common factor of the terms• factoring by grouping (referred to here as “factoring in pairs”) for
quadratics
Factoring Polynomials
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Link: How Do You Know if You Have a Difference of Squares?
• Virtual Nerd video explaining how to identify a binomial as a “difference of squares’’
• Two issues to be aware of:• considers only binomials with perfect square coefficients• the condition “the degree of each term must be even or 0” is true
but slightly misleading, since 0 is even• Time 2:26
Factoring Polynomials
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Link: How Do You Factor a Polynomial Using Difference of Squares?
• Virtual Nerd video example giving a step-by-step procedure to factor a binomial that is a difference of squares
• Time 4:45
Factoring Polynomials
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Link: Factoring a Difference of Squares
• Mathispower4u video introducing the factoring of a difference of squares
• Video includes• identifying a difference of squares• general formula for the factors of a difference of squares• numerous examples from very basic to somewhat more advanced
• Time 5:25
Factoring Polynomials
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Link: Example: Factor a Difference of Squares
• Mathispower4u video examples of factoring difference of squares binomials
• Includes review of the formula for the factors of a difference of squares and several examples
• Time 4:19
Factoring Polynomials
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Link: Ex: Factor a Difference of Squares with a Common Factor
• Mathispower4u video example of factoring a difference of squares binomial in which the terms have a (perfect square) common factor
• Time 3:06
Factoring Polynomials
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Link: Factoring a Sum or Difference of Cubes
• Mathispower4u video introducing factoring of sum of cubes and difference of cubes binomials
• Video includes• general formulas for factors of sum and difference of cubes
binomials• verification of sum of cubes formula using long division • examples, including one in which the terms of the binomial have
a common factor• Time 6:07
Factoring Polynomials
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Link: How Do You Factor a Polynomial Using a Sum of Cubes?
• Virtual Nerd video example giving a step-by-step procedure for factoring a sum of cubes binomial
• Time 4:15
Factoring Polynomials
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Link: How Do You Factor a Polynomial Using a Difference of Cubes?
• Virtual Nerd video example giving a step-by-step procedure for factoring a difference of cubes binomial
• Time 4:40
Factoring Polynomials
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Link: Ex 1: Factor a Sum or Difference of Cubes
• Mathispower4u video examples of factoring a sum of cubes binomial and a difference of cubes binomial
• Video includes• brief review of formulas for factors of sum and difference of
cubes• a basic example of each type
• Time 3:19
Factoring Polynomials
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Link: Ex 2: Factor a Sum or Difference of Cubes
• Mathispower4u video examples of factoring a sum of cubes binomial and a difference of cubes binomial
• Video includes• brief review of formulas for factors of sum and difference of
cubes• an example of each type in which the terms of the binomial have
a common factor• Time 3:35
Factoring Polynomials
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Link: Ex 3: Factor a Sum or Difference of Cubes
• Mathispower4u video example of factoring a sum of cubes binomial
• Video includes• brief review of formulas for factors of sum and difference of
cubes• an example of a sum of cubes in which the terms of the binomial
have a perfect cube common factor and relatively large coefficients
• Time 5:23
Factoring Polynomials
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Link: Factoring Perfect Square Trinomials & the Difference of Two Squares
• AlRichards314 video on factoring trinomials that are squares of binomials and factoring difference of squares binomials
• Video includes• review of formulas for the square of a binomial and the product
of a sum of two terms and the difference of the same terms• product formulas reinterpreted as factoring formulas• several examples of each type
• Time 7:45
Factoring Polynomials
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Link: Factoring a Perfect Square Trinomial
• Mathispower4u video on factoring trinomials that are squares of binomials
• Video includes• how to recognize a perfect square trinomial• formula for the factors of a perfect square trinomial• several examples, including one in which the terms of the
trinomial have a common factor• Time 7:52
Factoring Polynomials
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Link: How Do You Use a Shortcut to Factor a Perfect Square Trinomial?
• Virtual Nerd video on factoring trinomials that are perfect squares of binomials
• Video includes• how to recognize the pattern of a perfect square trinomial• formula for the factors of a perfect square trinomial (the
“shortcut”)• an example, using the formula and a step-by-step procedure
• Time 8:10
Factoring Polynomials
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Link: Ex: Factor a Perfect Square Trinomial
• Mathispower4u video examples of the special case of factoring quadratic polynomials that are perfect square trinomials
• Does not rely on memorized formula for factoring; instead uses a modified “trial and error” method given that the degree 2 and constant terms are perfect squares
• Time 5:33
Factoring Polynomials
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Link: Factoring Quadratics
• Purplemath text lesson on factoring quadratic polynomials• Topics and examples include• the “simple case” where the leading coefficient is 1• the “hard case” where the leading coefficient is not 1, using both
the “trial and error” method and the “box method”• the “weird case” of quadratic type polynomials that are not
actually quadratic
Factoring Polynomials
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Link: Factoring Trinomials with a Leading 1
• Khan Academy video example of factoring a quadratic polynomial with leading coefficient 1
• Video includes an explanation of what to look for (and why) in the coefficients of the quadratic in order to find the factors
• Method is illustrated with an example• Time 4:12
Factoring Polynomials
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Link: Factoring a Trinomial with Leading Coefficient of 1 - The Basics
• Mathispower4u video examples of factoring a quadratic polynomial with leading coefficient 1
• Video includes an explanation of what to look for (and why) in the coefficients of the quadratic in order to find the factors
• Method is illustrated with numerous examples, including one in which the terms of a trinomial have a common factor
• Time 10:34
Factoring Polynomials
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Link: Factoring Quadratic Expressions
• Khan Academy video examples of factoring a quadratic polynomial with leading coefficient 1
• Video includes an explanation of what to look for (and why) in the coefficients of the quadratic in order to find the factors
• Method is illustrated with many examples, including one in which the terms of a trinomial have a common factor
• Time 16:30
Factoring Polynomials
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Link: Factoring Trinomials: Trial and Error and Grouping
• Mathispower4u video examples of factoring a quadratic polynomial where the leading coefficient is not 1
• Video includes• trial and error (or reverse FOIL) method with an explanation of
the procedure and several examples• grouping method with several examples
• Time 9:45
Factoring Polynomials
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Link: Factoring ax^2+bx+c (Part 1)
• AlRichards314 video examples of factoring a quadratic polynomial where the leading coefficient is not 1
• Method used is a combination of trial and error (or reverse FOIL) and grouping
• Part 2 includes more examples• Time 5:22
Factoring Polynomials
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Link: Factoring ax^2+bx+c (Part 2)
• AlRichards314 video examples of factoring a quadratic polynomial where the leading coefficient is not 1
• Method used is a combination of trial and error (or reverse FOIL) and grouping
• Continuation of Part 1 with more examples• Time 4:49
Factoring Polynomials
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Link: Factoring Trinomials with a Common Factor
• Khan Academy video example of factoring a quadratic polynomial in which the terms have a numerical common factor
• Method used is a combination of trial and error (or reverse FOIL) and grouping
• Time 5:01
Factoring Polynomials
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Link: Practice: Factoring Quadratics 1
• Khan Academy interactive practice problems on factoring quadratic polynomials with leading coefficient 1
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Factoring Polynomials
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Link: Practice: Factoring Quadratics 2
• Khan Academy interactive practice problems on factoring quadratic polynomials where the leading coefficient is not 1
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Factoring Polynomials
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Link: Factor by Grouping
• Mathispower4u video examples of factoring polynomials using the grouping method
• Video includes• introduction to the grouping method via an example• written description of the steps in the grouping method• several examples of factoring cubic polynomials by grouping• example using grouping to solve a quadratic equation by
factoring• Time 7:48
Factoring Polynomials
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Link: Ex: Factor a Polynomial Using the Grouping Technique
• Mathispower4u video examples of factoring cubic polynomials using the grouping method
• Time 3:51
Factoring Polynomials
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Link: Factoring by Grouping and Factoring Completely
• Khan Academy video examples of factoring quadratic polynomials using the grouping method
• Includes an example of a trinomial in which the terms have a common factor
• Time 13:57
Factoring Polynomials
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Link: Example: Basic Grouping
• Khan Academy video example of factoring an expression with 4 terms in 2 variables using the grouping technique
• Time 3:46
Factoring Polynomials
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Link: Factoring Polynomials
• The Cool Math Guy video examples of factoring polynomials• Video includes• factoring out the greatest common factor of the terms• factoring quadratic polynomials• factoring by grouping
• Time 9:56
Factoring Polynomials
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Link: Practice: Factoring Polynomials by Grouping
• Khan Academy interactive practice problems on factoring polynomials using the grouping technique
• A sequence of five practice problems is provided, along with• help with correct formats to enter answers• hints to help solve the problem, if needed• links to video lessons if you get stuck
Factoring Polynomials
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Formulas & Polynomials in Two (or more) Variables• Description and examples of formulas and polynomial
equations, including evaluation at specific numbers and solving for one variable in terms of the others
• Equations and Formulas• Writing a Polynomial Expression from a Verbal Phrase • Evaluating Formulas and Polynomials for Specific Values of the
Variables• Solving for One Variable in Terms of the Others in a Formula• Interactive Practice Problems: Solving Equations in Terms of a
Variable Return to Topics List
CONTENTS:
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Link: Equations and Formulas
• Math Is Fun text lesson on equations, formulas, and the difference between them
Formulas & Polynomials in Two (or more) Variables
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Link: Example Question Involving Polynomials
• Tutortag video example of translating a verbal phrase into a polynomial expression
• Example expresses the difference in areas between two geometric figures whose dimensions are given as variables
• Time 5:34
Formulas & Polynomials in Two (or more) Variables
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Link: Evaluate a Formula Using Substitution
• Khan Academy video example using substitution in a formula to convert degrees Celsius to degrees Fahrenheit
• Time 1:15
Formulas & Polynomials in Two (or more) Variables
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Link: Evaluating a Polynomial at a Given Value
• Khan Academy video example of substitution of a negative number in a quadratic polynomial expression
• Time 1:09
Formulas & Polynomials in Two (or more) Variables
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Link: How Do You Evaluate an Algebraic Expression by Plugging in Values?
• Virtual Nerd video example of evaluating a polynomial expression in two variables at given values of the variables
• Time 1:07
Formulas & Polynomials in Two (or more) Variables
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Link: Polynomial Expressions and Polynomial Functions
• Mathispower4u video examples of substitution of numbers in polynomial expressions
• Video includes• review of polynomial terminology• examples of evaluation of polynomials in more than one variable
at specific values of the variables• evaluation of polynomial expressions in one variable at specific
numbers both by hand and using a graphing calculator• Time 7:25
Formulas & Polynomials in Two (or more) Variables
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Link: Evaluate a Quadratic Equation - Death Application
• Mathispower4u video example evaluating a quadratic polynomial at a number
• Polynomial formula models a real-world problem and includes non-integer (decimal) coefficients
• A calculator is used for most of the calculations• Time 4:52
Formulas & Polynomials in Two (or more) Variables
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Link: Evaluate a Polynomial Equation - Flu Virus Application
• Mathispower4u video example evaluating a fourth degree polynomial at a number
• Polynomial formula models a real-world problem and includes non-integer (decimal) coefficients
• A calculator is used for some of the calculations• Time 4:01
Formulas & Polynomials in Two (or more) Variables
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Link: Solving Equations and Formulas
• Slide Share text slides with examples of formulas in more than one variable and solving for one variable in terms of the others
• Emphasizes “undoing” operations to isolate the desired variable
Formulas & Polynomials in Two (or more) Variables
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Link: Solving Literal Equations
• Purplemath text lesson on solving for one variable in terms of the others in a formula with two or more variables
• Topics and examples include• geometric and other types of formulas in three or more variables• rewriting a linear equation in slope-intercept form to find the
slope of the line
Formulas & Polynomials in Two (or more) Variables
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Link: Rearrange Formulas to Isolate Specific Variables
• Khan Academy video example solving the area of a triangle formula for the height in terms of the area and base
• Time 2:29
Formulas & Polynomials in Two (or more) Variables
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Link: Solving for a Variable
• Khan Academy video example solving the rectangle perimeter formula for the length in terms of the perimeter and width
• Time 1:24
Formulas & Polynomials in Two (or more) Variables
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Link: Example: Solving for a Variable
• Khan Academy video example solving the rectangle perimeter formula for the width in terms of the perimeter and length
• Problem is solved in various ways• Time 6:58
Formulas & Polynomials in Two (or more) Variables
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Link: Solving for a Variable 2
• Khan Academy video example solving for the Fahrenheit temperature in the formula giving the Celsius temperature in terms of the Fahrenheit temperature
• Time 2:41
Formulas & Polynomials in Two (or more) Variables
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Link: Solving Equations in Terms of a Variable
• Khan Academy interactive practice problems on solving for one variable in terms of the others in an equation in two or more variables
• A sequence of five practice problems is provided, along with• hints to help solve the problem, if needed• links to video lessons if you get stuck
Formulas & Polynomials in Two (or more) Variables
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Polynomial Functions• Description and examples of the behavior of polynomial
functions, including end behavior, smoothness, turning points, and graphs
• End Behavior of Polynomial Function• General Properties of Polynomial FunctionsReturn to Topics List
CONTENTS:
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Link: Summary of End Behavior of Polynomial Function
• Mathispower4u video describing the end (or long run) behavior of a polynomial in terms of the degree and the sign of the leading coefficient
• Time 5:48
Polynomial Functions
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Link: How Polynomials Behave
• Math Is Fun text lesson on the behavior of the graphs of polynomial functions
• Topics and examples include• continuity and smoothness• behavior of xn for even and odd values of n• behavior of axn for various values of a• turning points• end behavior
Polynomial Functions
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Link: Polynomial Graphs: General Behavior
• Purplemath text lesson on the behavior of the graphs of polynomial functions
• Topics and examples include• end behavior• zeroes and their multiplicities• degrees and turning points• quick graphing
Polynomial Functions
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Link: Characteristics of Polynomial Functions
• AlRichards314 video introduction to the behavior of graphs of polynomial functions
• Topics and examples include• general shape of graphs of linear, quadratic, cubic, and quartic
polynomials• using finite differences to determine the degree of a polynomial
given by a table of values• Time 9:53
Polynomial Functions
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Link: How to Graph Polynomials
• For Dummies text lesson on graphing polynomial functions• Topics and examples include• plotting the intercepts• end behavior• determining whether the graph is below or above the axis
between each pair of intercepts• sketching the graph
Polynomial Functions