Difference of the Squares

x² - 9

• (x + 3) (x - 3)

• (x - 3) (x - 3)

• (x + 3) (x - 6)

• Can't factor using Diff. of Squares

4a² - 25

• (2a + 5) (2a - 5)

• (2a - 5) (2a - 5)

• (x + 5) (x - 5)

• Can't factor using Diff. of Squares

Find the factors of k² - 49. Select all that apply.

• (k + 13)(k - 13)

• (k + 7)(k - 7)

• (k + 5)(k - 5)

• (k - 7)(k + 7)

• (k - 13)(k + 13)

Find the factors of y² - 169. Select all that apply.

• (y + 13)(y - 13)

• (y + 7)(y - 7)

• (y + 5)(y - 5)

• (y - 7)(y + 7)

• (y - 13)(y + 13)

Complete the rule.

a² - b² =

• (a - b)(a - b)

• (a + b)(a + b)

• (a - b)(a + b)

• (a² - b)(a² + b)

Find the factors of d² - 25. Select all that apply.

• (d + 13)(d - 13)

• (d + 7)(d - 7)

• (d + 5)(d - 5)

• (d - 7)(d + 7)

• (d - 13)(d + 13)

Find the factors of x² - 16. Select all that apply.

• (x - 4)(x - 4)

• (x + 8)(x - 8)

• (x - 4)(x + 4)

• (x + 4)(x - 4)

• (x - 8)(x + 8)

Find the factors of x² - 64. Select all that apply.

• (x - 32)(x + 32)

• (x + 8)(x - 8)

• (x - 4)(x + 4)

• (x - 8)(x - 8)

• (x + 4)(x - 4)

Factor 81c² - 100.

• (c - 10)(c + 10)

• (3c - 10)(3c + 10)

• (9c + 100)(9c - 100)

• (9c - 10)(9c + 10)

Find the factors of 81 - 25w².

• (9 - 5w)(9 + 5w)

• (9w - 5)(9w + 5)

• (5w - 9)(5w + 9)

• (5 - 9w)(5 + 9w)