1. Warmup
1.) 16x2 – 81 2.) 3x ) 9x7 + 15x3 -18 x5 4.) 2x2 + 5x - 12

2. Factoring by Grouping
Chapter 12 supplement

3. Grouping When there are 4 terms, you factor by grouping Steps
1.) Group the first 2 terms and the last 2 terms
2.) Find the GCF of both sets of parenthesis 3.) Rewrite the factors in new parenthesis

4. Factor Tree
GCF Difference of Grouping Perfect Squares Trinomials

5. Examples
1.) 3x x2 + x 2.) x3 + 4x2 + 6x + 24

6. Examples (cont.)
3.) x2 + 2x + 3x ) x3 - 2x2 – 9x + 18

7. Class work

8. Homework