若2m=3,2n=4,则23m-2n等于______.
若2m=3,2n=4,则23m-2n等于______.
若|m-n|=n-m,且|m|=4,|n|=3,则(m+n)2=______.
若2m+n=25,m-2n=2,则(m+3n)2-(3m-n)2=______.
已知0≤m-n≤2,2≤m+n≤4,则当m-2n达到最小值时,3m+4n=______.
若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n
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=______.
m,n互为相反数,则(3m-2n)-(2m-3n)=______.
若a^m=4,a^n=3,则a^m+2^n等于?
若A(m+4,n)和点B(n-1,2m+1)关于x轴对称,则m=______,n=______.
若m-n=1,那么4-2m+2n的值为______.
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?