若 m^2+4n^2-4m+4n+5=0,则m^n=

若m^2+n^2+2m-4n+5=0,则m+n=? .4（m+n)^2*（m+n)^3-7（m+n)（m+n)^4+5（m+n)^5= (m-n)^2*(m-n)^4=? 已知m.n不等于0,若m*2-4mn+4n*2=0,求m+n/m-n 设m,n满足m^2+n^2+2m+4n+5=0,求n^m的值 m^+4m+n^-2n+5=0,求4m+5n=? 若5m-3n=-4,求出2（m-n）+4(2m-n) 若m^2+n^2-6n+4m+13=0则m-n=? m平方+2M+N平方-4N+5=0,求M,N m*m+n*n-4m+2n+5=0 已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2= 如果m和n互为相反数,则m+2m+3m+4m+5m+5n+4n+3n+2n+n= 如果m,n互为相反数,求m+2m+3m+4m+5m+5n+4n+3n+2n+n=多少 [(m+n)(m-n)-(m-n)²+2n(m-n)]÷4n (m-2n)(2n+m)-(-3m-4n)(4n-3m)= [2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3] 若 m^2+4n^2-4m+4n+5=0,则m^n= 若|m|=4,|n|=1/2 1,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|若|m|=4,|n|=1/21,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|,则m、n的值分别是：