The correct option is (B) x - 4 = 5
Explanation:
The question demands the result of the "first" step; Given Equation:
(x-4)^2 = 25
The first step should be to take square root on both sides:
[tex] \sqrt{(x-4)^2} = \sqrt{25} \\ x-4 = 5[/tex]
Which is Option (B)