Question

What values of x make the equation x^2 + 9x – 22 = 0 true? Check all that apply.

–11

–2

0

2

11

Answer 1

x = 2 , - 11.

Explanation:

Given : x² + 9x – 22 = 0

To find : What values of x make the equation.

Solution : we have given x² + 9x – 22 = 0

On factoring

x² + 11x - 2x – 22 = 0 .

Taking common x from first two term and -2 from last two terms.

x ( x +11) - 2 (x +11) = 0.

On grouping

(x -2) (x +11) = 0

For

x - 2 =0

x = 2 .

For

x + 11 = 0

x = -11.

Therefore, x = 2 , - 11.

Answer 2

If you would like to solve the equation x^2 + 9x - 22 = 0, you can do this using the following steps:

x^2 + 9x - 22 = 0
(x - 2) * (x + 11) = 0
1. x = 2
2. x = - 11

The correct result would be x = 2 and x = - 11.