若(m^2)-2m+10=6n-(n^2),求{(m^2-n^2)/(m^2+2mn+n^2)+(2/mn)÷(1/m+1/n)^2}÷[1/(m+n)]的值

(m-2n/n-m)-(n/m-n)= 若m平方+n平方+2m-6n-6n+10=0求m n的值. m×m+n×n+2m-6n+10=0,m+n=?赶紧帮忙回答呀,谢谢谢 (1),(-m-n)(-m+n) (2),(-m+n)(m-n) 若m^2+n^2=10,m-n=2,则m+n= 若（m+n)(m-n)^2-mn(m+n)=(m+n)·M,则M是 若m^2-n^2=6,且m-n=3,则m+n=? 满足m^2+n^2+2m-6n+10=0 m、n等于多少 若m^2+n^2-6n+4m+13=0则m-n=? 若m n互为相反数 则3[m-n]-1/2[2m-10n]=? 已知m^2+n^2-6m+10n+34=0,求m-n m^2+n^2-6m+10n+34=0,求m+n m^2+n^2-6m+10n+34=0求m+n的值 若(m+n)^2-6(m+n)+9=1,则m+n=多少? 若m、n互为相反数,则(5m-3n)-(2m-6n)= m²+2m+n²-6n+10=0 则m*n等于? m*+n*+2m-6n+10=0 ,求m+n? (m-n)^3(n-m)^2(m-n)=_____