1.若(3n)^3=216,(2m)^2=9,则m^(n+1)=______2.若2^m=3,2^n=4,则2^mn=______3.设m^2+m-1=0,求m^3+2(m^2)+2008的值.

(m-n)^3(n-m)^2(m-n)=_____ (3m-n)(m-2n)=() 若2m-n/m+2n=5,求3（2m-n）/m+2n-m+2n/2m-n+3的值 若2m-n/m+2n=5,求3（2m-n）/m+2n-m+2n/2m-n+3的值 若2m=3n,求分式（1+m/n-n/n-m)除以（1-m/n-n/n+m)的值 若2m=3n,求分式（1+m/n-n/n-m)除以（1-m/n-n/n+m)的值 已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=? 已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2= m/n=5/3,求（m/m+n）+（m/m+n)-（n^2/m^2-n^2) 已知m/n=5、,求（m/（m+n）)+(m/(m-n))-(n^2/(m^3-n^2)) 若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n)/[4(2m+n)]}的值是? 1若m=n,则|m|=|n|;2若m=—n,则|m|=|n|;3若|m|=|n|,则m=—n;4若|m|=|n|,则m=n哪个对 若(m+n)^2-mn(m+n)=(m+n)·M,则M是（） A.m^2+n^2 B.m^2-mn+n^2 C.m^2-3mn+n^2 D.m^2+mn+n^2 若有理数m,n满足m-2n=4,2m-n=3,则m+n等于 若|m-n|=n-m,且|m|=4、|n|=3,则（m+n)^2= 若|m-n|=n-m,且|m|=4,|n|=3,则(m+n)^2=? 2m+3n+2m+3n+m+2m+3n+n=______ (m-2n)(2n+m)-(-3m-4n)(4n-3m)=