
(x-y)2•(y-x)³(x-y)=?
2个回答
展开全部
答:
(x-y)2•(y-x)³(x-y)=
=(x-y)²×(y-x)³(x-y)
=(x-y)³×(y-x)³
=-(x-y)^6
(x-y)2•(y-x)³(x-y)=
=(x-y)²×(y-x)³(x-y)
=(x-y)³×(y-x)³
=-(x-y)^6
追问
题目是(x-y)乘以2,不是二次方
追答
答:
(x-y)×2•(y-x)³(x-y)=
=(x-y)×2×(y-x)³(x-y)
=2(x-y)²×(y-x)³
=2(y-x)^5
结果是2乘以(y-x)的5次方
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