Question

Solve the equation:

(x+2)(x-9)=0

Answer 1

x = -2

x = 9

Explanation:

since the left side multiplies out to zero, at least one of the expressions in parentheses must equal zero. if x + 2 is zero, then x must be -2. if x - 9 is zero, x must be 9. therefore, the two answers are -2 and 9.