m-{n-2m+[3m-(6m+3n)+5n]}=
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m-{n-2m+[3m-(6m+3n)+5n]}=
![m-{n-2m+[3m-(6m+3n)+5n]}=](/uploads/image/z/3464651-11-1.jpg?t=m-%7Bn-2m%2B%5B3m-%286m%2B3n%29%2B5n%5D%7D%3D)
m-{n-2m+[3m-(6m+3n)+5n]}
=m-n+2m-[3m-(6m+3n)+5n]
=3m-n-3m+(6m+3n)-5n
=-6n+6m+3n
=6m-3n
=m-n+2m-[3m-(6m+3n)+5n]
=3m-n-3m+(6m+3n)-5n
=-6n+6m+3n
=6m-3n
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
m-{n-2m+[3m-(6m+3n)+5n]}=
(m-5n)(m-n)-6(m+2n)(m-3n)
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
已知m/n=5/3,求m/(m+n)+m/(m-n)-n平方/(m平方-n平方)
若m、n互为相反数,则(5m-3n)-(2m-6n)=
m-{n-2m+[3m-(6m+3n)-5n]}化简
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
m方-【5m+3n】【5m-3n】+6【2m-n】【m+2n】等于多少
(m+n)²-6(m+n)+9=(m+n)²+2(m+n)×(-3)+(-3)²=[(m+