simplify x-2/8x to the 2nd power - 32

3 answers

You need to add parentheses in order to clarify the problem.
[(x-2)/8x]2 or just what?
You probably mean
(x-2)/(8x^2-32) = (1/8)*(x-2)/(x^2 -4)
Now factor the denominator and cancel the (x-2) in the numerator.

You should end up with 1/[8(x+2)]
5x+9>49