Factor.1) 2x²y – 16xy + 4x3y5z

2) x² – 16

3) 49 – 4y2

4) a2 + 9

Homework Solutions

1) (x – 9)(x + 9) 2) (m – 10)(m + 10)3) (4n + 5)(4n – 5)4) (6x – 10y)(6x + 10y)5) Prime6) (4a + 3b)(4a – 3b)7) (15c + a)(15c – a)

MULTIPLY THE FOLLOWING:

1) (x + 2)(x + 3)

2) (x + 5)(x – 2)

3) (x – 4)(x – 6)

WHAT DO YOU NOTICE?

5) (x + 2)(x + 10)

6) (x – 3)(x + 8)

                                                                                 

            

Factoring Trinomials

To factor a trinomial of the form:

x2 + bx + c

You must find two numbers that:1) Multiply to c2) Add to b

Examples

1) Factor. x2 + 5x – 6

2) Factor. x2 – 10x + 16

3) Factor. c2 + c – 12

4) Factor. a2 – 7a – 18

                                                      

Factor

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Homework

Chapter 9 Packet

Pg. 535 #’s 1 – 9