1. Factoring
A Review
By Akash Kar

2. Factoring a Greatest Common Factor

3. Factoring a Difference of Two Squares
Notice that in order to make the “y” in product negative, they have to be opposite when it is “y” in the factors.

4. Factoring Perfect Square Trinomials
3b is negative because the middle number (-42) is negative.

5. Factoring Trinomials
Factor the Greatest Common Factor

6. Factoring Trinomials with a Coefficient
Note: This is basically the same as factoring trinomials regularly, except there is a coefficient with the first variable.

7. Factoring by Grouping

8. Using Several Methods