
用提公因式法把多项式-6(x-y)³-3y(y-x)²分解因式的结果是( )。 A,-(x-y)
用提公因式法把多项式-6(x-y)³-3y(y-x)²分解因式的结果是()。A,-(x-y)³(6-3y)B,-3(x-y)³(2...
用提公因式法把多项式-6(x-y)³-3y(y-x)²分解因式的结果是( )。
A,-(x-y)³(6-3y)
B,-3(x-y)³(2+y)
C,3(x-y)³(y+2)
D,3(x-y)³(y-2) 展开
A,-(x-y)³(6-3y)
B,-3(x-y)³(2+y)
C,3(x-y)³(y+2)
D,3(x-y)³(y-2) 展开
展开全部
-6(x-y)³-3y(y-x)²
=-6(x-y)³-3y(x-y)²
=-3(x-y)²[2(x-y)+y]
=-3(x-y)²(2x-y)
你给出的选项都是错误的
题目应该是:
-6(x-y)³-3y(y-x)³
=-3(x-y)³(2+y)
选 B
=-6(x-y)³-3y(x-y)²
=-3(x-y)²[2(x-y)+y]
=-3(x-y)²(2x-y)
你给出的选项都是错误的
题目应该是:
-6(x-y)³-3y(y-x)³
=-3(x-y)³(2+y)
选 B
追问
用提公因式法把多项式-6(x-y)³-3y(y-x)³
追答
选B
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