Question

Which of the following is a value of r for which (r + 2)(r − 3) = 0?

Answer 1

r = -2 or r = 3

Explanation:

Step 1: Simplify both sides of the equation.

r2−r−6=0

Step 2: Factor left side of the equation.

(r+2)(r−3)=0

Step 3: Set factors equal to 0.

r + 2 = 0 or r − 3 =0

r = −2 or r = 3