Factoring Review

Factor:  x² + 9x + 18

• (x + 3)(x + 6)
• (x - 3)(x - 6)
• (x + 9)(x + 2)
• (x + 3)²

5x²-15x+10

• (5x-2)(x-5)
• 5(x-2)(x+1)
• Your Face
• 5(x-2)(x-1)

Fully Factor the Following
25x²-81

• (5x-9)²
• (5x+9)(5x-9)
• 25(x-9)²
• (9x+5)(9x-5)

Fully Factor the Following
4x²-16

• (2x-4)(2x+4)
• (4x-4)(4x+4)
• 4(x-2)²
• 4(x-2)(x+2)

Factor:
17xy - x

• 17(xy - x)
• y(17x - x)
• x(17y - 1)
• not factorable

Factor
3v² - 4v - 7

• (3v-7)(v+1)
• 3(v-7)(v-1)
• Unfactorable
• (3v+1)(v-10)

Factor: 4x²-16x-9

• (2x-9)(2x+1)
• (2x+9)(2x-1)
• (4x-1)(x+9)
• (x+1)(4x-9)

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 for a by factoring.
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3

n² - 15n + 56 = 0

• {3, 0}
• {-8, 8}
• {-3, 6}
• {7, 8}