Factor Polynomials by Dots

Factor 81m² - 1 (DOTS)

• not factorable

• (m - 9)(m + 9)

• 9m(9m - 1)

• (9m - 1)(9m + 1)

Tags

CCSS.HSA.APR.C.4

Factor: x² - 400

• (x - 200) (x + 200) 

• (x + 20) (x + 20) 

• (x + 40) (x - 10)

• (x - 20) (x + 20) 

Tags

CCSS.HSA.APR.C.4

Factor (DOTS)
4x² - 9

• (2x + 3) (2x - 3)

• (2x + 3) (2x + 3)

• (2x - 3) (2x - 3)

• (2x - 3)²

Tags

CCSS.HSA.APR.C.4

Which of these can factor using difference of two squares (DOTS)?

Tags

CCSS.HSA.APR.C.4

Tags

CCSS.HSF-IF.C.7C

Factor Completely: 2n³ + 7n² − 2n − 7
**Hint:Factor by grouping AND DOTS

• (n − 1)²(2n + 7)

• (n − 1)²(2n − 7)

• (n + 1)(n − 1)(2n − 7)

• (n + 1)(n − 1)(2n + 7)

x² - 16

• Prime

• ( x - 4) ( x + 4) 

• ( x - 8) ( x + 8) 

• ( x - 4) ( x - 4) 

Tags

CCSS.HSA.APR.C.4

Factor:
x² - 9

• (x + 3)(x - 3)

• (x + 3)²

• (x - 3)²

• (x+3)(x+3)

Tags

CCSS.HSA.APR.C.4

Factor:
x² - 49

• (x + 7)(x - 7)

• (x + 7)²

• (x - 7)²

• (x+7)(x-1)

Tags

CCSS.HSA.APR.C.4

Factor 9x² - 100

• (3x + 10)(3x - 10)

• (3x - 10)(3x - 10)

• (3x + 10)(3x + 10)

• (3x + 10i)(3x - 10i)

Tags

CCSS.HSA.APR.C.4