1. Factoring Day 1 I can factor a quadratic expression. x 2 + 3x + 2 Rewrite as (x + 1)(x + 2)

2. ax 2 Factoring Notes ax 2 + bx + c c Example x 2 + 9x + 18 Factor of ac that adds to b Greatest Common Factor Multiply a and c Factors of ac that add to b x2x2 18 6x6x 3x3x Greatest Common Factor x+ 6 x + 3 Greatest Common Factor (x + 6)(x + 3) Multiply ac Add up to b: Factors: a= b= c= 1 9 18 9 6 3 x x Find 2 numbers that:

3. Example x 2 + 7x + 12 x2x2 12 4x4x 3x3x Greatest Common Factor x+ 4 x + 3 Greatest Common Factor (x + 4)(x + 3) Multiply ac Add up to b: Factors: a= b= c= 1 7 12 7 3 4 Example x 2 + 13x + 12 x2x2 12 12x 1x1x Greatest Common Factor x+ 12 x + 1 Greatest Common Factor (x + 12)(x + 1) Multiply ac Add up to b: Factors: a= b= c= 1 13 12 13 1 12 Find 2 numbers that:

4. I can factor a quadratic expression. x 2 + 3x + 2 Rewrite as (x + 1)(x + 2) Assignment: WS: Factoring(1) SHOW ALL WORK!