Step-by-step explanation:
(x+4)²=9
x+4=±3
x=-1,-7
Answer:
x = -1
(x + 4)² = 9
Find the square root of both sides so that the square is gone.
√(x + 4)² = √9
x + 4 = ±3
Get x along on one side by subtracting 4 from each side.
(x + 4) - 4 = ±3 - 4
x = -1, -7
