Question

Given (x – 7)2 = 36, select the values of x. x = 13 x = 1 x = –29 x = 42

Answer 1

In order to check, plug in the x values in the equation.
If x = 13,
(13 - 7)^2 = 6^2 = 36
If x = 1
(1 - 7)^2 = -6^2 = 36
If x = -29
(-29 - 7)^2 = -36^2 = 1296
If x = 42,
(42 - 7)^2 = 35^2 = 1225.
So option A and B are the answer