Question

Based on the work shown on the right, check all of the possible solutions of the equation.

-8


-2


0


2


8

Diagram not drawn to scale

Answer 1

8

Explanation:

sqrt(2x) - x = - 4

sqrt(2x) = x - 4

2x = (x - 4) ^ 2

2x = x ^ 2 - 8x + 16

o = x ^ 2 - 10x + 16

matrix 0&=& (x - 2)(x - 8) matrix )