Factor. 1)2x²y – 16xy + 4x 3 y 5 z 2)x² – 16 3)49 – 4y 2 4)a 2 + 9.

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Presentation transcript:

Factor. 1)2x²y – 16xy + 4x 3 y 5 z 2)x² – 16 3)49 – 4y 2 4)a 2 + 9

Homework Solutions 1)(x – 9)(x + 9) 2)(m – 10)(m + 10) 3)(4n + 5)(4n – 5) 4)(6x – 10y)(6x + 10y) 5)Prime 6)(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: x 2 + bx + c You must find two numbers that: 1) Multiply to c 2) Add to b

Examples 1) Factor. x 2 + 5x – 6

2) Factor. x 2 – 10x + 16

3) Factor. c 2 + c – 12

4) Factor. a 2 – 7a – 18

Factor Answer: Factor Answer: Factor Answer:

Factor Answer: Factor Answer: Factor Answer:

Factor Answer:

Homework Chapter 9 Packet Pg. 535 #’s 1 – 9