1. Objective - To recognize and use the factoring pattern, Difference of Squares.
Multiply. 1) 2) 3) 4)
Inner and Outer terms cancel!

2. Factor. 1) 2) 3) 4) 5) 6) 7)

3. Factoring Polynomials
Five Types of Factoring
1) Greatest Monomial Factor
1) Greatest Monomial Factor
2) Difference of Squares
2) Difference of Squares
3) Perfect Square Trinomial
4) Trinomial Factoring :
5) Trinomial Factoring :

4. Difference of Squares? Factor. Perfect Square Perfect Square minus
List the perfect squares from 1 to 200. 1 25 81
169 4 36
100
196 9 49
121 16 64
144

5. Factor. 1) 5) 2) 6) 3) 7) 4) 8)

6. Factor completely. 1) 2) Greatest Monomial Factor
Difference of Squares 2)
Difference of Squares
Difference of Squares

7. Factor completely. 1) 3) 2) 4)