To evaluate the expression (x-2)^1/2 the next steps listed are x^(-2)(1/2)
then x^-1 and finally 1/x. I am fine with the final two steps.
Please help me see how or what rules are used to go from the first to second step. Is this just a basic rules I am forgetting?
So in summary how does (x-2)^1/2 become x^(-2)(1/2)