Question

If (x + 4)^2 = 49 and x <0, what is the value of x?

Answer 1

x = - 11

Explanation:

Take the square root of both sides.

sqrt(x+4)^2 = sqrt(49)

x + 4 = +/- 7

x + 4 = + 7

x = 3 Not what you want.

x + 4 = - 7

x = - 11