(x-y)的平方乘以(y-x)的三次方+(x-y)乘以(x-y)的四次方

2024-11-16 06:58:39
推荐回答(1个)
回答1:

(x-y)的平方乘以(y-x)的三次方+(x-y)乘以(x-y)的四次方
=-(x-y)^2(x-y)^3+(x-y)(x-y)^4
=-(x-y)^5+(x-y)^5
=0