m^2-n^2+3m-3n x^2-5x-6 m^2-n^2+3m-3nm^2-n^2+3m-3nx^2-5x-6 m^2-n^2+3m-3n

(2x-3)(x-n)=2x^2+5x+m求m与n (x-5)(x-n)是X^2-3x+m因式分解的结果求M,N [(m-n)^2*(n-m)^3]^2/(m-n)^4 [(-x^5)^2]^3/[(x^4)^2/(x^2)^3] 已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N 计算:(x^m+n)^2·(-x^m-n)^3+x^3m-n`(-x^3)^m 因式分解x^2-3mx+(2m+n)(m-n) 若不等式(m+n)x+(2m-3n) 若不等式(m+n)x+(2m-3n 若不等式(m+n)x+(2m-3n) 设不等式(m+n)x+(2m-3n) 设不等式（m+n）x+（2m-3n) 3x(m-n)+2(m-n)因式分解 3x(m-n)+2(m-n)因式分解 若不等式(m+n)x+(2m-3n) 计算：x·x^n+2-x^n·x^3（m-n）^5·（n-m)^2·(n-m)^2 分式计算题2道 3x/(x-3)² - x/3-x m+2n/n-m + m/n-m - 2m/n-m m^2-n^2+3m-3n x^2-5x-6 m^2-n^2+3m-3nm^2-n^2+3m-3nx^2-5x-6 m^2-n^2+3m-3n M={x|x=3m+5n,m,n∈Z},N={x|x=2m+4n,m,n∈Z},那么M与N的关系是?