多项式乘法1.(m+2n)(m-n)= 2.(3x-2)(2x+5)= 3.4Y^2-(4Y-1)(Y-5)=4.2X(
已知多项式2x2+xy-3y2-x-4y-1=(2x+3y+m)(x-y+n),求m、n的值.
若多项式3x (m+2n) y和-4x(3) y(3m-2n)是同类项,则m= .n= .(___)中是次方
若3x^m+1y^2与x^3y^n的积是单项式3x^5y^5则n^m+m^n=
集合M={X=3m+1,m∈N*},N={y/y=5n+2,n∈N*},则M∩N=?
已知M=x+3y-3z,N=-2x+5y-z,且3M+2N+P=0,求多项式P
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求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)(
你的值,使关于x,y的多项式(m+1)x^3y-(n-4)*x^2y^n-1+5xy-1是:
3x+4y=-5 5x+6y=-9 (n-8m)x-8y=10 5x+(10m+2n)y=-9 求m.m+n.n=?
若x^3m=4,y^3n=5,求(x^2m)^3+(y^n)^3—x^2m·y^n·x^4m·y^2n的值
若x^3m=4,y^3n=5,求(x^2m)^3+(y^3n)^2
已知2x^5m+2n-18-y^3m-4n=1是关于x,y的二元一次方程,则m= ,n= .