Question

Select the correct answer.

What is the solution to the equation?
-2√ + 4 = -12
OA 4
OB. 8
Ос. 16
OD. 64

Answer 1

D. 64

Explanation:

-2(square root of x) + 4 = -12

-2(square root of x) = -12 - 4

-2(square root of x) = -16

divide by negative 2 both sides

square root of x = 8

the we square both sides

(square root of x)^2 = (8)^2

therefore x = 64