已知m^2+n^2-6m+10n+34=0求2m-3n的值
已知m^2+n^2-6m+10n+34=0,求m-n
已知m^2+n^2-10m+6n+34=0,求代数式2m+5n的值.
已知:3m-5n=0,求m/(m+n)+m/(m-n)-m^2/(m^2-n^2)的值
已知3m-5n=0求m/m+n+m/m-n-m^2/m^2-n^2的值
已知|2m-n/m+2n|=3,求2(2m-n)/m+2n-2m-n/m+2n-3的值
已知(m+n)(m+n)=10,(m-n)(m-n)=2,求mmmm+nnnn的值
已知m^2-2m+n^2-n/3+37/36=0 求6n-m^2的值
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/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
已知m-2n=3.求[(3m+2n)(3m-2n)-(m+2n)(5m-2n)]÷1/3 m 的值.
已知m/n=5/3,求分式m/(m+n)+m/(m-n)-n^2/(m^2-n^2)的值