化简:(1)-5(x^2-3)-2(3x^2+5) (2)2m-3n+[6m-(3m-n)]
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=?
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
m-{n-2m+[3m-(6m+3n)-5n]}化简
(m-5n)(m-n)-6(m+2n)(m-3n)
已知单项式M N满足3x(M-5x)=6x^2y^2 求M N
计算:(1)(m-n)^2*(n-m)^5*(m-n)^5 (2)(-x)^2*x^3+2x^3*(-x)^2-x*x^
计算(1)(3m-4n)(3m+4n)-(2m-2n)(2m+n) (2)(x+5y)²-(x-5y)
已知x^m=3,x^n=6 求 x^m-n,x^3m-2n的值
若不等式(m+n)x+(2m-3n)
设不等式(m+n)x+(2m-3n)