I have no problem finding maximum and minimums of functions, except when there's an e involved. For example finding the max and min values of e^((x^3)-x) on the closed interval -1 and 0. First off I don't know how to find the derivative of a power raised to another power, and even when I cheat and use a derivative calculator to find that, I don't know how to set the remaining derivative with e equal to 0. Would someone mind helping me out here?