已知8^m=2 4^n=6则2^6m+2n+1=?
1、已知(m-n)^2=8,(m+n)^2=2,则m^2+n^2= 2、m^2+n^2=6n-4m-13,则m^2-n^
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
1,已知3m=4n,则m/m+n +n/m-n -m^2/m^2-n^2=
已知4^m=6,8^n=2,求2^2m-3n+1
已知,方程(2m-6)x^|n|+1+(n+2)y^m^2-8=0,求m,n
已知m-3n=2m+n-15=1,则m=?,n=?
已知m^2+n^2-6m+10n+34=0,求m-n
已知A=根号m+n+10的m-n次方是m+n +10的算术平方根,B=根号4m+6n-1的m-2n+3次方是4m+6n-
分解因式:(1)6a(m-n)^2-8a^2 (m-n)^3 (2)已知m、n均为整数,且有m(m-n)-n(n-m)=
已知3n-2m-1=0,求,(1)6n-4m的值;(2)(m+n)-(3m-2n-7)的值
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)
m^2+4m+n^2-6n+13=0,则m+n=