八上数学幂的乘方计算题求过程，

Question

如题所述

Answer 1

原式=（X-Y）^6 x (-1)^3 x (X-Y)^9+(X-Y)^15
=(-1)^3 x (X-Y)^15+(X-Y)^15
=-(X-Y)^15+(X-Y)^15
=0