Factoring and Solving by Factoring

Factor x² + 12x + 20

• (x + 2)(x + 10)
• (x + 3)(x + 4)
• (x + 4)(x + 5)
• (x + 4)(x + 6)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor 3a² + 4a + 1

• (7a-10)(a-8)

• Not factorable

• (3a+1)(a+1)

• (3a-1)(a-1)

Factor x² - 25

• ( x + 5 ) ( x - 5 )

• ( x - 5 ) ( x - 5 )

• ( x + 5 ) ( x + 5 )

• Prime

Factor x² + 9x - 36

• (x + 12)(x - 3)

• (x + 9)(x - 4)

• (x - 12)(x + 3)

• (x - 9)(x - 4)

Factor 2x² + 17x + 21

• (2x+1)(x+7)

• (2x+3)(x+7)

• (2x+3)(x+1)

• (2x+3)(x+3)

Factor 3x² - 4x - 7

• (3x-7)(x+1)

• 3(x-7)(x-1)

• (3x+1)(x-9)

• (3x+1)(x-10)

Factor n² + 16n + 64

• (n - 4)(n - 7)

• (n + 8)(n + 8)

• (n + 6)(n - 8)

• (n - 9)(n + 6)

Factor x² - 30x + 225

• (x + 15)²

• (x - 15)²

• (x + 25)²

• (x - 25)²

Solve by factoring : x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2