1. The problem statement, all variables and given/known data Dx(7x+2-3x5) 2. Relevant equations CNXN-1? 3. The attempt at a solution Basically, I am in Physics C and this is our first homework assignment dealing with calculus/derivatives. I was able to do some of them, but I have no idea how to do this one, mainly because I don't know what to do with the Dx. To make sure I am on the right track, please tell me if this is the correct answer for another problem: Problem: f(x) = -5x2+2x-1, find df/dx And my answer is -10x + 2, using the power rule. Is that right?