Question

(x+4)^2=9
x=?
help please!

Answer 1

x = -1

Explanation:

(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

Answer 2

Explanation:

(x+4)²=9

x+4=±3

x=-1,-7