Introduction to Factoring Quadratics

Find the factors of 4x²-16x-9

• (2x-9)(2x+1)

• (2x+9)(2x-1)

• (4x-1)(x+9)

• (x+1)(4x-9)

What are the factors of 3x²-17x+10

• (x-5)(3x-2)

• (x+5)(3x+2)

• (3x-5)(x-2)

• (x+5)(3x-2)

Find the factors of 100x²-64

• (10x-8)(10x+8)

• (x-10)(x+8)

• (10x+8)(10x+8)

• (10x-8)(10x-8)

What are the factors of x²+3x-40

• (x+10)(x-4)

• (x+8)(x-5)

• (x+20)(x-2)

• (x+1)(x-3)

What are the factors of x²-8x-48

• (x-12)(x+4)

• (x+12)(x-4)

• (x+12)(x+4)

• (x-12)(x-4)

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)