Originally Posted by

**sepoto** I'm not sure I'm getting that yet. Is it really possible to just use the power rule. I was under the impression that (x+5)^3 would have to be expanded by the binomial theorem or alternatively the chain rule would have to be applied. The term I question has two terms parenthesized to the third power. I was under the impression that the power rule works on individual terms only.

I think what your saying is that since x is to the first power and has no constant in front of it that the power rule can still apply but otherwise it couldn't.