Difficulty : College 1. The problem statement, all variables and given/known data 3. The attempt at a solution I am unsure how to approach this question. I think it involves a process where you add an expression & and subtract it (or multiply & divide) in order to manipulate the equation and rearrange it or reorder it. I've already tried expanding the (x-c)^i part, but later realized x^i - c^i does not equal (x-c)^i. Any help would be much appreciated Thanks!