Factoring Quadratics

Find the factors of x²-81

• (x-9)(x+9)

• (x+9)(x+9)

• (x-9)(x-9)

• Can't be factored

Find the factors of 5x²+20x+20

• 5(x+2)(x+2)

• 5(x-2)(x-2)

• 5(x+2)(x-2)

• (5x+2)(x+2)

Factor: 3x² + 9x - 12

• 3(x - 4)(x + 1)

• (3x - 12)(x + 1)

• (x + 4)(3x - 1)

• 3(x + 4)(x - 1)

Factor:
18b²-9b³

• 9b²(18-9b)

• 9b²(2-b)

• 9b²(18-9b²)

• b²(2-b²)

What are the factors of x²+3x-40

• (x+10)(x-4)

• (x+8)(x-5)

• (x+20)(x-2)

• (x+1)(x-3)

Factor
3a² + 4a + 1

• (7a-10)(a-8)

• Not factorable

• (3a+1)(a+1)

• (3a-1)(a-1)

Factor: 5n² - 6n - 27

• (5n + 3)(n-9)

• (5n - 3)(n + 9)

• (5n + 9)(n - 3)

• (5n - 9)(n + 3)

Factor:
 4x²-16x-9

• (2x-9)(2x+1)

• (2x+9)(2x-1)

• (4x-1)(x+9)

• (x+1)(4x-9)

Factor:
 2x² - 7x + 6

• (x -1)(2x - 6)

• (x - 3) (2x - 2)

• (x - 2) (2x - 3)

• (x - 6) (2x - 1)

Factor: 25x² - 9

• (5x + 3)(5x - 3)

• (x + 5)(x - 3)

• (x - 3)(x + 5)

• (5x + 3)(3x + 5)