Factoring the Difference of Two Squares

Factor by rearrangin to use difference of squares
-64 + x²

• (x-8)(x+8)

• (8-x)(8+x)

• (-8+x)(-8-x)

• (x-64)(x+64)

Factor 4x² - 9

• (4x + 9) (4x - 9)

• (2x + 3) (2x - 3)

• 2x - 3

• (2x + 4.5) (2x - 4.5)

Factor 9x² - 49y²

• (3x + 7y²) (3x + 7y²)

• (3x + 7y) (3x - 7y)

• (3x - 7y²) (3x - 7y²)

• (3x² - 7y²) (3x² - 7y²)

Factor 4m² - 49

• (2m + 7) (2m - 7)

• (2m - 7) (2m - 7)

• (m² + 7) (m² - 7)

• Can't factor using Diff. of Squares

Factor r² - 9t²

• (r + 3t) (r - 3t)

• (r - 3t) (r - 3t)

• (3r + t) (3r - t)

• (r + 3t) (r + 3t)

Factor 25x² - 81

• (5x - 9)²

• (5x + 9)(5x - 9)

• (5x + 9)(5x + 9)

• (9x + 5)(9x - 5)

Factor 49x² - 16

• (7x + 4) (7x - 4)

• (7x + 4) (7x + 4)

• (7x² - 4) ²

• (7x - 4) (7x - 4)

Factor x² – 16.

• (x + 2) (x – 8)

• (x – 4) (x – 4)

• (x + 4) (x + 4)

• (x + 4) (x – 4)

Factor 4y² – 9.

• (2y + 3) (2y – 3)

• (4y + 3) (4y - 3)

• (2y + 3) (2y + 3)

• (2y – 3) (2y – 3)

Factor 225x² - 169y²

• (15x - 13y)²

• (15x + 13) (15x - 13)

• (25x + 13y) (25x - 13y)

• (15x + 13y) (15x - 13y)