0 Comments
Answer:
x² - 4 = 0
Explanation:
choices: x² - 4 = 0, x² = -4, 3x² + 12 = 0, 4x² = 16, 2(x-2)² = 0
to find x= -2, 2
(x + 2) (x - 2) = 0
x = -2, 2
9.4m questions
12.2m answers