m-n^2+m-n^2 化简
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m-n^2+m-n^2化简m-n^2+m-n^2化简m-n^2+m-n^2化简m-n^2+m-n^2=2m-2n^2
m-n^2+m-n^2 化简
m-n^2+m-n^2 化简
m-n^2+m-n^2 化简
m-n^2+m-n^2=2m-2n^2
分式加减法:化简:2m/m-n-n/n-m+m+2n/n-m
(m-n)2(n-m)3(n-m)4化简
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
m-n^2+m-n^2 化简
化简:M-[N+(2M-N)]
化简,1.[(m+n-p)(m+p+n)-(m+n)²]/(-p),2.[(m+n)(m-n)-(m-n)²+2n(m-n)]/4n
(m-2n)(-m-n)
化简[(2m-n)÷(m+n)-n÷(m-n)]÷[{m-2n}÷(m+n)]
m-n+2n^2/(m+n)
(m-2n/n-m)-(n/m-n)=
2(m-n)²-m(m-n)
化简:m/m -n 减 n/m+n 加 2mn/m平方减n平方
(m+n)(m-n)-(1-2n)化简
(m-n)(m+n)+(m+n)²-2m²
化简(m²/m-n - m+n)÷2m²-mn/n - m
化简m-[n-2m-(m-n)]的结果
计算m+2n/n-m+n/m-n-2n/n-m
(m-n)+2n(m-n)(m-n)的平方+2n(m-n)因式分解