提取公因式法(x+y)²-(x+y)³=(x-y)²-(y-x)³=(x-y)²-(x-y)³=
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提取公因式法(x+y)²-(x+y)³=(x-y)²-(y-x)³=(x-y)²-(x-y)³=提取公因式法(x+y)²-(x+y
提取公因式法(x+y)²-(x+y)³=(x-y)²-(y-x)³=(x-y)²-(x-y)³=
提取公因式法
(x+y)²-(x+y)³=
(x-y)²-(y-x)³=
(x-y)²-(x-y)³=
提取公因式法(x+y)²-(x+y)³=(x-y)²-(y-x)³=(x-y)²-(x-y)³=
Amuletの琉音,你好：
(x+y)²-(x+y)³=(x+y)²(1-x-y)
(x-y)²-(y-x)³=(x-y)²+(x-y)³=(x-y)²(1+x-y)
(x-y)²-(x-y)³=(x-y)²(1-x+y)