Use the definition of the derivative to find f' (x).
The answer I got is
Can someone tell me if this is right? If it isn't, I will post my work to see where I went wrong.
it is better not to simplify in this case, so there is no ambiguities. just apply the chain rule, as you so rightly directed, and call it a day
After I substituted in for x, and used the definition of the derivative of a function to set the rest of the problem up, how would I get out of the denominator?
I used the conjugate method, then I got a common denominator. I just simplified from there on out. Is this not right?