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[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值 x^n*y*(-x^2y^m) (x+y)(m+n)2-(x+y)(m+n)2 m(x-y)^n+n(y-x)^2n因式分解 若关于x,y的多项式:x^(m-2)y^2+mx^(m-2)+nx^3y(m-3)-2x(m-3)y+m+n 若-2x^2*y(-x^m*y+3xy^3)=2x^5y^2-6x^3y^n,求m,n的值? 若x^3y^m-1*x^m+n*y^2n+2=x^9y^9,则4m-3n=（）. 若3x^m+1y^2与x^3y^n的积是单项式3x^5y^5则n^m+m^n= 因式分解 (m+n)(x-y)-(m+n)(x+y) (x-2y)(2x+3y)-2(2y-x)(5x-y) 2道因式分解 （m+n)(x-y)-(m+n)(x+y) (x-2y)(2x+3y)-2(2y-x)(5x-y) x+y=m,x-y=n,那么2x-3y等于 x+y=m,x-y=n,那么2x-3y等于多少 怎么计算(x-y)^m*(x-y)^（n+2）*(y-x)^3 若单项式M,N满足2x（M+3x）=6*x*x*y*y+N,求M,N 提公因式分解6(m-n)^2+3(m-n)、 2（x-y)-(x-y)^2 4x^(m+6)y^2+X^3y^n=单项式,m^n= (7m-8n)(x+y)-(3m-2n)(x+y) 因式分解：3m[(2x+n)(2x-n)+y(y-4x)] 若x^3m=4,y^3n=5,求(x^2m)^3+(y^n)^3-x^2n*y^n*x^4m*y^2n的值