已知m^2+9n^+6m+6n+10=0,求(m^2-6mn+9n^2)÷(m-3n)-(4m^2-9n^2)÷(2m-3n)的值

已知m^2+n^2-6m+10n+34=0,求m-n 已知m^2+9n^2+6m+6n+10=0,求(m^2-6mn+9n^2)/(m-3n)-(4m^2-9n^2)/(2m-3n) 已知m^2+9n^+6m+6n+10=0,求(m^2-6mn+9n^2)÷(m-3n)-(4m^2-9n^2)÷(2m-3n)的值 已知m²+n²-6m+10n+34=0,则m+n=? 已知m*+n*-6m+10n+34=0,则m+n=? 已知m^2+n^2+2mn-6m-6n+9=0,求(m+n)^2 已知m^2+n^2-10m+6n+34=0,求代数式2m+5n的值. 已知m^2+n^2-6m+10n+34=0求2m-3n的值 已知m的平方+N的平方+2M-6N+10=0,则M+N等于? 已知:m²+2m+n²-6n+10=0,求m,n的值 已知满足m²+n²+2m-6n+10=0,求m,n的值 已知m^2+n^2+2m-6n+10=0,则m+n等于?(m^2+2m+1)+(n^2-6n+9)=0,为什么10变成了9? 已知m,n满足根号下m-2n+丨2m-n-6丨=0求根号下n/m × 根号下m^2+n^2. m*m+n*n-6m+10n+34=0,求m+n的值 已知㎡+n²-6m+10m+34=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 已知实数m,n,且m>n>0,m²+n²=4mn,则m²﹣n²/mn的值等于∵(m+n)²=m²+2mn+n²,(m-n)²=m²-2mn+n²,m²+n²=4mn.(m+n)²=6mn(m-n)²=2mn(m+n)²(m-n)²=12m²n²mm³-2m
（m+n)^2-6(m+n)+9=0,则m+n=