|x-2|+|y+3|+|z-5|=0,求xyz的值
设X+Y+Z=0求X^3+X^2Z-XYZ+Y^2Z+Y^3的值
已知|x-4|+|y-2|+|z-3|=0求|xyz-5|的值
|x-2|+|y+3|+|z-5|=0,求xyz的值
已知xyz满足方程组x+4y-3z=0,求x:y:z的值 4x-5y+2z=0
已知4x-3y+z=0,x+2y-8z=0,xyz不等于0,求x+y-z/x-y+2z的值
若xyz不等于0,且满足(y+z)/x=(x+z)/y=(x+y)/z,求(y+z)(x+z)(x+y)/xyz的值
若xyz不等于0,且(y+z)/x=(z+x)/y=(x+y)/z,求(y+z)(z+x)(x+y)/xyz的值?
已知x+y+z=0,求多项式x^3+x^2z-xyz+y^3的值
x*x+y*y+2z*z-2x+4y+4z+7=0,求xyz的值
已知{4x-5y 2z=0/x 4y-3x=0(xyz不等于0),求x:y:z:d的值
已知xyz满足x+y+z=30,3x+y-z=50,设t=5x+4y+2z 1当t=40时,求xyz的值 2若xyz均为
已知有理数xyz 满足|x-z-2|+(3x-6y-7)的二次方+|3y+3z-4|=0 ,求xyz的值.