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Homework Help: Expand x^(k+1)/(k+1) - (x-1)^(k+1)/(k+1)

  1. Aug 10, 2016 #1
    1. The problem statement, all variables and given/known data
    Expand x(k+1)/(k+1) - (x-1)(k+1)/(k+1)

    2. Relevant equations
    (a+b)m = am + mam - 1b + (mℂ2)am - 2b2 + ........ + bm

    3. The attempt at a solution
    Here is my solution, I would like to know if it's correct or not

    I have the solution in an attached image

    Attached Files:

  2. jcsd
  3. Aug 10, 2016 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Looks right. Might be better to write it as a sum over an index, i.e. using Σ.
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