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