4m(x-y)-2m^2(y-x)^3

4m(x-y)-2m^2(y-x)^3 计算：(y-x)^3(x-y)^m-(x-y)^m+2(y-x) (Y-X)^3*(X-Y)^m+(X-Y) ^m+1*(Y-X)^2 (x-y)m次方(y-x)2m次方+(y-x)3m次方得几 计算(x-y)^m(y-x)^2m+(y-x)^3m x^n*y*(-x^2y^m) 计算:(1).(2x-3y)/(y-x)-(x+2y)/(x-y) (2).[5m/(m-3)+2m/(m+3)]*(m^2-9)/m 分解因式x^m+3-2x^m+2y+x^m+1y^2 分解因式：x^m+3-2x^m+2*y+x^m+1*y^2 分解因式x^m+3-（2x^m+2）y+（x^m+1)y^2 因式分解:2x^5m-1 * y^m -4x^3m-1 * y^m+2 +2x^m-1 * y^n+4 (x-2y)^m+1/(x-2y)^m-3/(2y-x)^3怎么算 计算：2/1-m-1/m-1.2x/x-y -y/y-x -y-2x/x-y.12/m²-9 -2/m-3 关于X,Y的方程组3X+2Y=2m+5与x-y=4m-5的解x,y满足x+2y 若多项式5x*x-2mxy-3y*y+4xy-3x+1中不含xy项,求（-（m*m*m）+2（m*m）-m+1）-（m*m*m+2m*m-m+4） 已知x^(3m)=2 y^(2m)=3 求（x^(2m)）^3+(y^m)^6-(x^2*y)^3m * y^m 已知方程组{4x+y=3m 2x-2y=9m,求x+y+m/3x-2y的值. 已知x.y满足2x-y=3m,x+2y=4m+5,且x+y=0,求m的值