计算:【(x-y)的2次幂】的3次幂乘(x-y)乘【(x-y)的3次幂】的4次幂
问题描述:
计算:【(x-y)的2次幂】的3次幂乘(x-y)乘【(x-y)的3次幂】的4次幂
答
[(x-y)^2]^3*(x-y)*[(x-y)^3]^4
=(x-y)^6*(x-y)(x-y)^12
=(x-y)^19