Solve for x: √(x + 40) - 17 = - 11 ​

Question

Solve for x:

`√(x + 40) - 17 = - 11`
​

Answer 1

x=-4

Explanation:

sqrt(x+40) - 17 = -11

Add 17 to each side

sqrt(x+40) - 17+17 = -11+17

sqrt(x+40) = 6

Square each side

(sqrt(x+40) )^2 = 6^2

x+40 = 36

Subtract 40 from each side

x+40-40 = 36-40

x = -4