1. Lesson 6-6 Special Products of Binomials
Obj: The student will be able to find special products of binomials HWK: p all Vocab: 1) perfect-square trinomial 2) difference of two squares

2. Ex 1) Find the area of a square with side lengths of a + b

3. Multiply
Ex 2) (x + 4)² Look for pattern:

4. Ex 3) (x + 6)² Ex 4) (5a + b)²

5. Ex 5) (-m + 3)² Ex 6) (1 + c³)²

6. Ex 7) (x – 4)² Look for pattern:

7. Ex 8) (x – 7)² Ex 9) (3b – 2c)²

8. Ex 10) (a² - 4)²

9. Ex 11) (a + b)(a – b) Ex 12) (x + 6)(x – 6) Look for pattern:

10. Ex 13) (3 + 2y²)(3 – 2y²) Ex 14) (9 + r)(9 – r)

11. a) How can you find the area of the path?
Ex 15) A square Koi pond is surrounded by a gravel path. Write an expression that represents the area of the path.
a) How can you find the area of the path?
b) Find the area of the path.
X - 2
X + 2

12. Special Products of Binomials
Perfect-Square Trinomials (a + b)² = (a + b)(a + b) = a² + 2ab + b² (a – b)² = (a – b)(a – b) = a² - 2ab + b² Difference of Two Squares (a + b)(a – b) = a² - b²