(2m+1/3n)^2 计算
计算(m+n)^3-(n+m)(m-n)^2
计算1/(m-n)-1/(m+n)-2n/(m^2+n^2)-4n^3/(m^4+n^4)-8n^7/(m^8+n^8)
(2m+1/3n)^2 计算
计算(m-n)^3+(n-m)m^2
2m(m²-n+1)计算
计算[5(m+n)2(m-n)]3÷【3(m+n)2(n-m)]2
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
计算:5(m+n)(m-n)-2(m+n)^2-3(m-n)^2
计算(3-m+n)*(3+m-n)-(2-m+n)*(2+m-n)
计算(m+4n)(m-n)-6(m+2n)(m-3n)
计算:(2m+3n)(2m-3n)
(m-2n+3)(m+2n-3)计算,