(|m|-2)x^3y^(n-3)
把下列各式因式分解(2m+3n)(2m-n)-4n(2m-n)(x+y)^2(x-y)+(x+y)(y-x)^24a(x
m、n都是自然数,多项式x^m+2y^n-3^m+n
计算:1.[(m+n)(n-m)-(m+n)^2+3m(m+n)]除以(-2M),其中m=-4,n=2 2.(x+y)(
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
集合M={X=3m+1,m∈N*},N={y/y=5n+2,n∈N*},则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.
已知,单项式M,N满足2x(M+3x)=6x²y²+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,
m、n都是自然数,多项式x^m+2y^n-3^m的次数是()?
计算(1)(3m-4n)(3m+4n)-(2m-2n)(2m+n) (2)(x+5y)²-(x-5y)
已知x^3m=8,y^3n=27,求(x^2m)^3+(y^n)^3-x^2m*y^n