Formative: Solving using Factoring

Solve the equation using the zero product property.

(x- 9)(x + 3) = 0

• x = 3 or x = 9

• x = -3 or x = 9

• x = 3 or x = -9

• x = -3 or x = -9

Solve the equation by factoring.

x² + 13x + 40 = 0

• x = -8, x = 5

• x = 5, x = 8

• x = -40, x = 1

• x = -8, x = -5

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x = 2, x = -1

• (x + 2)(x - 1); x = -2, x = 1

• (x + 1)(x - 3); x = -1, x = 3

• (x - 1)(x + 3); x = 1, x = -3

Solve by factoring.

x² + 9x + 20 = 0

• x = -2, x = -10

• x = -4, x = -5

• x = -3, x = -4

• x = -4, x = -6

Solve the equation using the zero product property.

3x ( 2x - 4) = 0

• $x\ =-\frac{1}{3}\ or\ x\ =-2$

• $x\ =-\frac{1}{3}\ or\ x=2$

• x = 0 or x = 2

• x = 0 or x = -2