What values of x make the equation x2 + 9x – 22 = 0 true?

To solve this polynomial equation, we will need to factor the left side.

On the left, we have a a trinomial in a special form that

can be factored as the product of two binomials.

The trinomial on the left can be factored which makes life easier.

This factors as (x + 11)(x - 2) = 0.

This means that either x + 11 = 0 or x - 2 = 0.

Solving each equation from here, we get x = -11 or x = 2.

So the solution is {-11, 2}.

2 and -11

Step-by-step explanation:

Step 1: Use the quadratic formula to solve for x

Therefore the values of 'x' that make the equation true is 2 and -11

3x^3-x^2+6x-9

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

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