Question

What values of x make the equation x2 + 9x – 22 = 0 true? Check all that apply.
Use zero property method
PLEASE SOLVE ON PAPER AND SEND PICTURE 20 POINTS


–11

–2

0

2

11

Answer 1

⇒x² + 9x – 22 = 0

⇒x² + 11x – 2x - 22 = 0

⇒(x+11) (x-2) = 0

⇒either x+11 = 0 , then x = -11

⇒or x-2 = 0, then x = 2

which clearly confirm that -11 & 2 are solution of this equation