1/m-n,2/n^2-m^2,3n/2(m+n)通分
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1/m-n,2/n^2-m^2,3n/2(m+n)通分
1/m-n,2/n^2-m^2,3n/2(m+n)通分
1/m-n,2/n^2-m^2,3n/2(m+n)通分
1/(m-n)=-1/(n-m)
2/(n^2-m^2)=2/(n-m)(n+m)
3n/[2(m+n)]
公分母是2(m+n)(n-m)
通分后
1/(m-n)=-1/(n-m)=-2(m+n)/[2(m+n)(n-m)]
2/(n^2-m^2)=2/(n-m)(n+m)=4/[2(m+n)(n-m)]
3n/[2(m+n)]=3n(n-m)/[2(m+n)(n-m)]
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
(m-2n)(-m-n)
m-n+2n^2/(m+n)
[(m-n)^2*(m-n)^3]^2/(m-n)^4
[(m-n)^2*(m-n)^3]^2/(m-n)^4
3m(m-n)-2n(m-n)的平方
因式分解(n-m)^3(m-n)^2-(m-n)^5
(m-n)2(n-m)3(n-m)4化简
(n-m)^3×(m-n)^2-(m-n)^5
计算(m+n)^3-(n+m)(m-n)^2
(m-n)^3(n-m)^2(m-n)=_____
4m(m-n)^2+4n(n-m)^3
2(m-n)的2次-(m+n)(m-2n)-3n(n-m)
(m-2n/n-m)-(n/m-n)=
2m-3n-m+2n
(m-n)3-(2n-m)3
(3m-n)(m-2n)=()
(m+2n)(m-3n)