已知m-n=3,则5-2m+2n=______.(写过程)
已知m,n,p都整数,且|m-n|3+|p-m|5=1,则|p-m|+|m-n|+2|n-p|=______.
已知m,n,p都是整数,且|m-n|+|p-m|=1,则|p-m|+|m-n|+3(n-p)2=______.
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
已知2m+n分之m-2n=3,则2m+n分之3(m-2n)+3(2m+n)分之m-2n-4(2m+n)分之5(m-2n)
已知0≤m-n≤2,2≤m+n≤4,则当m-2n达到最小值时,3m+4n=______.
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
已知:-m+2n=5,那么4(m-2n)2+6n-3m-60的值为______.
m,n互为相反数,则(3m-2n)-(2m-3n)=______.
m-{3n-4m+[m-5(m-n)+m]}=______.
已知M和N表示单项式,且3x(M-5x)=6x2y2+N,则M=______,N=______.
已知m2+n2+2m-6n+10=0,则m+n=______.
若2m+n=25,m-2n=2,则(m+3n)2-(3m-n)2=______.