4x-3y-6y=0,x+2y-7y=0帮忙解XYZ,每一步都要,谢谢
4x-3y-6y=0,x+2y-7y=0帮忙解XYZ,每一步都要,谢谢
已知有理数x,y,z满足条件;|x-y-2|+|3x-6y-7|+(3y+3z-4)的平方=0则xyz=___?
已知方程组4x-y+3z=0 2x+y+6z=0且xyz不等于0,则x/y+y/z+z/x是多少
x*x+y*y+2z*z-2x+4y+4z+7=0,求xyz的值
若4x-3y-6z=0,x+2y-7z=0(xyz≠0),则x:y:z=______.
已知有理数x.y.z满足(x-z-2)^2+(3x-6y-7)^2=/3y+3z-4/=0求xyz=多少
已知有理数x,y,z满足条件:|x-z-2|+|3x-6y-7|+(3y+3z-4)^2=0,则xyz=?
已知有理数x,y,z满足(x-z-2)²+(3x-6y-7)+|3y+3z-4|=0,则xyz=
已知有理数x,y,z满足(x-z-2)^2+(3x-6y-7)^2+|3y+3z-4|=0求xyz的值
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.
已知;4x-3y-6z=0,x+2y-7y=0(xyz不等于0),求2x+3y+6z/x+5y+7z的值
已知4x-3y-6z=0,x+2y-7y=0(xyz≠0),求代数式5x^2+2y^2-z^2/2x^2-3y^2-10