(3m-n)3*-(8m-5n)
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
化简-3n+5m-[m-5(m-n)+m]
已知m/n=5/3,求m/(m+n)+m/(m-n)-n平方/(m平方-n平方)
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
(3m-n)3*-(8m-5n)
化简{5m-3n}-{8n-2m}
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
[5m(3m-n)+2n(n-3m)]/(3m-n)
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
(m+5n)^2-2(5n+m)(n-3m)+(3m-n)^2
计算[5(m+n)2(m-n)]3÷【3(m+n)2(n-m)]2