Question Details

Detailed explanation and options for the selected question.

If x² - 9 = 0, what are the values of x?

A. 3 and -3

B. 3 and 0

C. -3 and 0

D. 0 and 9

Explanation:

Explanation: x² - 9 = 0 => (x-3)(x+3) = 0. Solutions are x = 3 and x = -3.