作业帮(y-x)²(x-y)+(x-y)的三次方+2(x-y)²(y-x)
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 23:51:33
(y-x)²(x-y)+(x-y)的三次方+2(x-y)²(y-x)
(y-x)²(x-y)+(x-y)的三次方+2(x-y)²(y-x)
(y-x)²(x-y)+(x-y)的三次方+2(x-y)²(y-x)
解
(y-x)²(x-y)+(x-y)³+2(x-y)²(y-x)
=(x-y)²(x-y)+(x-y)³-2(x-y)²(x-y)
=(x-y)³+(x-y)³-2(x-y)³
=2(x-y)³-2(x-y)³
=0