Question

If x^2 = 25 , then what could be the value of 4^(x-2)

Answer 1

See below

Explanation:

if x^2 = 25 then x = 5 or - 5

then 4 ^(5-2) = 4^3 = 64

or

4 ^(-5 -2) = 4 ^(-7) = 1 / (4^7) = 1 / 16384