若|m-2|+n^2-8n+16=0,则m=___,n=____.
若|m-2|+n^2-8n+16=0,则m=___,n=____.
若|m-2|+n2-8n+16=0,则m= ___ ,n= ___ .
若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
2,方程2x(m-n+1)-1/2y(2m=3n-4)=3是二元一次方程,则m=___,n=____
若m^2+n^2-6n+4m+13=0则m-n=?
若|m-n|+(m+2n-3)²=0,则m+n的值是
若m+n=0,则多项式m^3-m^3n-mn^2+n^3
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)
如果m,n为有理数,且满足/m+n+2/+(m-2n+8)^2=0,则mn=____.(讲清楚,每一步都写出来,
若x^2+n^2—6n+4m+13=0,则m-n