Find the coefficient of x32 and x-17 in the expansion of (x4 - 1/x3)15.
Here is the link for the answer to your query:
https://www.meritnation.com/ask-answer/question/find-the-coefficient-of-x-17-on-the-expansion-of-x4-1-x3-15/binomial-theorem/6382656
https://www.meritnation.com/ask-answer/question/find-the-coefficient-of-x-17-on-the-expansion-of-x4-1-x3-15/binomial-theorem/6382656