m×m+n×n+2m-6n+10=0,m+n=?
已知m^2+n^2-6m+10n+34=0,求m-n
n=m/M
若m×m+n×n-6n+4m+13=0,则m×m-n×n=?
2x+n/m=m/n-(m/n+n/m)x(m+n不等于0)
若m平方+n平方+2m-6n-6n+10=0求m n的值.
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
m^2+4m+n^2-6n+13=0,则m+n=
若m^2+n^2-6n+4m+13=0则m-n=?
m的平方+n的平方-6m+10n+34=0,求m+n
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
m-{n-2m+[3m-(6m+3n)+5n]}=
(m+n)²-6(m+n)+9=(m+n)²+2(m+n)×(-3)+(-3)²=[(m+