因式分解: 2(y-x)²+4(x-y)= m(x-y)²-m(y-x)= n(m-n)³-m(n-m)²= mn(
因式分解:2(y-x)²+4(x-y)=m(x-y)²-m(y-x)=n(m-n)³-m(n-m)²=mn(a²+b...
因式分解:
2(y-x)²+4(x-y)=
m(x-y)²-m(y-x)=
n(m-n)³-m(n-m)²=
mn(a²+b²)+mn²(a²+b²)= 展开
2(y-x)²+4(x-y)=
m(x-y)²-m(y-x)=
n(m-n)³-m(n-m)²=
mn(a²+b²)+mn²(a²+b²)= 展开
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