如果2x+y=1,求z=2x^2+16x+3y^2的最小值,

如果,根号x-3+| y-2 |+z^2=2z-1 求 （x+z)^y 如果|x+y+z-6|+|2x+3y-z-12|+|2x-y-z|=0求x,y, 如果x/2=y/3=z/4,求(2x-y+3z)/(x+y-z)的值 如果2x-3y=z x+3y-14z=0 求x:y:z 快, 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知：x^2/(z+y)+y^2/(x+z)+z^2/(x+y)=0,求x/(z+y)+y/(x+z)+z/(x+y)的值. x^2/(z+y)+y^2/(x+z)+z^2/(x+y)=0,求x/(z+y)+y/(x+z)+z/(x+y)的值 已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z 如果2x+y=1,求z=2x^2+16x+3y^2的最小值 如果2x+y=1,求z=2x^2+16x+3y^2的最小值, 若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值 x+2y=3x+2z=4y+z 求x:y:z (x*x+2)(y*y+4)(z*z+8)=64xyz,求x,y,z 分式加减的几道题目求速度1 .(x+y)²/（x-z)(y-z) - (y+z)²/（x-z)(y-z) = 2.2x+3y/x-y+2y/y-x-3y/x-y= 如果X分之1=Y+Z分之2等于Z+X分之3,求X分之Z+Y的值快,快,急这是初一一元一次方程的奥数题目x/1=(x+z)2=(x+z)3 如果x+y=2z,且x≠y,那么x/x-z+y/y-z等于多少 如果x+y=2z,且x≠y,那么x/(x-z)+y/(y-z)等于( )急