1. Lesson 5.2 Difference of Squares
Objective - To recognize and use the factoring pattern, Difference of Squares.
Multiply. 1) 2) 3) 4)
Inner and Outer terms cancel!
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series
Algebra 1 by James Wenk © 2003 published by TEACHINGpoint

2. Factor. 1) 2) 3) 4) 5) 6) 7)
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series

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 :
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series

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
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series

5. Factor. 1) 5) 2) 6) 3) 7) 4) 8)
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series

6. Factor completely. 1) 2) Greatest Monomial Factor
Difference of Squares 2)
Difference of Squares
Difference of Squares
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series

7. Factor completely. 1) 3) 2) 4)
Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series