Question

同底数幂除法(2m-y)的五次方/(y-2m)的2次方 要过程.不要直接答案

Answer 1

原式=(2m-y)^5/[-1*(2m-y)]^2

=(2m-y)^5/[(-1)^2(2m-y)^2]

=(2m-y)^5/(2m-y)^2

=(2m-y)^(5-2)

=(2m-y)^3