Question

If (x-3)^2 = 25, which of the following could equal (x-4)^2;

a = 4
b = 9
c = 16
d = 36
Explain you answer and tell me why the others are not correct

Answer 1

(x - 3)² = 25

x - 3 = ±5

x = -2, 8

(-2 - 4)² = (-6)² = 36

(8 - 4)² = 4² = 16

The correct answers are c and d.