8.4: Do Now: Multiply the expression. Simplify the result.

23

2

4

35

6

48 .)1

yx

yx

y

yx

Academy Algebra II8.4: Multiply and Divide

Rational ExpressionsHW: p.577-578 (6, 8, 12, 24-38 even)

Chapter 8 Test: Monday, 2/23

Simplifying Expressions with Polynomials

1.) Factor (check for GCF first)2.) Multiply or divide.3.) Simplify.

Simplify

9

152 .)1

2

2

x

xx

158

1535 .)2

2

23

xx

xxx

Multiply the expression.Simplify the result.

25

322

164

5 .)1

2

2

x

x

x

x

Multiply the expression.Simplify the result.

2110152

103 .)2 2

2

2

xxxx

xx

Divide the expression.Simplify the result.

565

54 .)1 2

2

xx

x

xx

Divide the expression.Simplify the result.

93

1

27

2 .)2

23

xxx

x

Divide the expression.Simplify the result.

49

4

426

3212x .)3

2

22

x

xx

x

x

8.5 Do Now: Perform the indicated operation.

xx 4

3

4

7 .)1

6

5

6

2 .)2

xx

x

Academy Algebra II8.5: Add and Subtract Rational

ExpressionsHW: p.586 (6, 8, 16-32 even)

Adding and Subtracting Fractions1.) Change fractions to have a common denominator. (Factor, if needed.)2.) Add or subtract numerators only (carry over denominator).3.) Simplify, if possible.

Perform the indicated operation.

7

1

4

3 .)3 x

Perform the indicated operation.

3

1

2

2 .)4

xx

Perform the indicated operation.

xx

x

x 339

7 .)5

22

Perform the indicated operation.

34

12

22

2 .)6

2

xx

x

x

x

Perform the indicated operation.

107

5

36x

.)7

x

x

Perform the indicated operation.

x

x

410

63 .)8