若x^3m=4 y^3m=5 求(x^2m)^3+(y^n)^3-x^3my^3n的值
若x^3m=4,y^3n=5,求(x^2m)^3+(y^n)^3—x^2m·y^n·x^4m·y^2n的值
已知(x+y+3)(x-my+n)=x平方-xy-2y平方+5x-4y=6,求m,n的值
已知x=^m+n=3,y=^m+n+2,求代数式(1/3x^my^n)*(-1/2x^ny^m)的值
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
若x^3m=4,y^3n=5,求(x^2m)^3+(y^3n)^2
若(-5x^m+1×y^2-1)×(2x^n×y^m)=-10x^4y^4,试求m-n的值.x^3-2x[2x^2-3(
已知M.N分别表示不同的单项式,且3x(M-5x)=6x*x*y*y*y+N,求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=
已知,单项式M,N满足2x(M+3x)=6x^2y^2+N,求M,N.
已知单项式M、N满足2x(M+3x)=6x^2y^2+N,求M、N.
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
已知,单项式M,N满足2x(M+3x)=6x²y²+N,求M,N