Solution:
(x + 2)² = 16
(x + 2)(x + 2) = 16
x² + 4x + 4 = 16
x² + 4x + 4 - 16 = 16 - 16
x² + 4x - 12 = 0
(x - 2)(x + 6) = 0
x - 2 = 0 or x + 6 = 0
x = 2 or x = -6
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FACTORING
Algebraic Expression: (x + 2)² = 16
Solution:
(x + 2)² = 16
(x + 2)(x + 2) = 16
x² + 4x + 4 = 16
x² + 4x + 4 - 16 = 16 - 16
x² + 4x - 12 = 0
(x - 2)(x + 6) = 0
x - 2 = 0 or x + 6 = 0
x = 2 or x = -6
ANSWER:
x = 2 or x = -6