1. Show What You Know! x2 + 4x – 12 5x2 + 19x + 12 -6x2 – 25x - 25
Put this on a clean sheet of paper. No working with a neighbor. Let’s see what you remember from last week!
x2 + 4x – 12
5x2 + 19x + 12
-6x2 – 25x - 25

3. Factoring Special Products
I CAN and I WILL factor polynomials.

4. Let’s recall using the Difference of Two Squares…
Multiply. 1) 2)
Middle terms cancel!

5. Difference of Two 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

6. Examples
Ex1)
Ex 2)
Ex 3)

7. Greatest Monomial Factor
Watch This:
Greatest Monomial Factor
Difference of Squares

8. Ex 4)

9. Follow the pattern! (Do you remember???)
Term b
Term
Twice the
b Term
times a Term
Square
of the b
Term
Middle terms double!

10. Watch This!
Ex 5)

11. Factoring a perfect square trinomial when the leading coefficient is NOT 1.
Think about what the square root of the first and last terms would be.

12. Ex 6)

13. Ex 7)

14. Watch This!
Greatest Monomial Factor
Perfect Square Trinomial

15. Ex 8)

16. Practice!