若3x^4 y与-2x^2m y^3n可以合并,则mn=

2m+n 5 3 2m-n诺4x y 与x y 是同类项,m/n= 若3x^m+1y^2与x^3y^n的积是单项式3x^5y^5则n^m+m^n= 若(3x*m+2n)y*8与(-2x*2)y*3m+4n是同类项,则m+n=? 若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值 若代数式2x^2 y^m与-1/3x^n y^3是同类项,则m+n= 若2x^3y^m与-3y^2x^n是同类项,则m+n= 若y=3x+m与y=nx-2互为反函数,求m n 若y=3x+m与y=nx-2互为反函数,求m,n 若3x^(m+5)y^2与x^3y^n是单项式,则m^n=_____ 若-7x^m+2y与-3x^3y^n是同类项,则M= N= 2X^(3m-1)y^4与-3X^8y^(2n)是同类项,求n和m 若3x^(m+5)y^2与x^2y^n的和是单项式,则n^m= 若3x^(m+5)y^2与x^3y^n是单项式,则m^n=_____ 为什么x^ m+5与x^ 3相等 -3x^2my^3与2x^4y^n则/m-n/的值 若3x^4 y与-2x^2m y^3n可以合并,则mn= 若x^3y^m-1*x^m+n*y^2n+2=x^9y^9,则4m-3n=（）. 已知-2x^3m+1与4x^n-6y^-3-m的积与-x^4y是同类项,求m,n的值 若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT