Question

Find the solution set x^2+2x-15=0

Answer 1

x = 3 or x = -5

Explanation:

x² + 2x - 15 = 0

Factor left side of equation.

(x - 3)(x + 5) = 0

Set factors equal to 0

x - 3 = 0

x = 3

x + 5 = 0

x = -5