2m+n 5 3 2m-n诺4x y 与x y 是同类项,m/n=

2m+n 5 3 2m-n诺4x y 与x y 是同类项,m/n= 已知-7x^m-2n y^4与9分之8x^5 y^m+n 是同类项,求（m-2n)^2 -3(m+n)-5(m-2n)^2 +m+n的值 已知-3x^m-2ny^n-2与5分之1x^5y^4-m是同类项,求(m-2n)的平方-5(m+n) 已知-3X^2m-2ny^n-2与1/5x^5y^4-m是同类项,求（m-2n）^3-5（m+n）-2（m-2n）^2+m+n的值 已知-5x^2m-1 y^n与11X^n+2 y^-4-3m的积是同类项,求2n-m-9 数学同类项题已知5X^(2M-N)Y^(3M)与4X^(2N)Y^(5+2N)是同类项,试比较M^N与N^M的大小, 2x^2m-n y^3m-2n 与5x^2n y^5是同类项,则m= ,n= 若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT 若4x^2m+n * y^m-n与-8x *y^5-n是同类项,则m=?,n=? 初一下学期二元一次方程难题,已知x^2m-n×y^3m和4x^2n×y^5+2n是同类项,则m^n与n^m的大小关系是____? 若3x^m+1y^2与x^3y^n的积是单项式3x^5y^5则n^m+m^n= 已知-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与-(1/2)x^3y^2是同类项,求m,n的值 已知-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与-(1/2)x^3y^2是同类项,求m+n的值.如题 已知-4x^(m+2)y^(3m-n)÷[-2x^(5m)y^(2m+n)]的商与-(1/2)x^3y^3是同类项,求m+n 已知[-4x^m+2n y^3m-n]/(-2x^5m y2m+n)的商与-1/2x^3y^2是同类项,求m+n的值 若单项式-4x^m-1 y^n+1与2/3x^2m-3 y^3n-5是同类项,则m=( ),n=若单项式-4x^m-1 y^n+1与2/3x^2m-3 y^3n-5是同类项,则m=( ),n=( ) 已知2/3x^2n-1y^3m与-1/4x^5y^n+2是同类项,则m+n=? 方程2x的2m+n+3次方+3y的5n-m-4次方m-n=?