Question: Can maple be taught to differentiate polynomials without simplifying?

Dear All, I'm working on a problem in differential equations where I need to compute the n-th power of a differential expression. Can Maple be taught to differentiate polynomial functions without carrying out the multiplications / simplifications that it usually does? For example: diff(-2*c/x^3,x); gives the answer 6*c/x^4. I want it to return: (-3)(-2)*c/x^4. Ideally, I also do not want it to simplify sums of such results. Thank you very much, I appreciate your help! Andrea Bruder
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