八年级下册数学若2x-3y+z=0,3x-2y-6z=0,且xyz不等于0,求2x²+y²-z&su
八年级下册数学若2x-3y+z=0,3x-2y-6z=0,且xyz不等于0,求2x²+y²-z&su
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
初中数学整式加减问题已知x-y=2,y+z=3,求多项式(x-y)²+(x+z)²-(y+z)&su
若1/2x=1/3y=1/4z且xyz不等于0,求x:y:z
已知x+y-z/z=x-y+z/y=-x+y+z/x,且xyz不等于0,求分式[(x+y)(x+z)(y+z)]/xyz
已知方程组2x-3y+z=0 3x-2y-6z=0 且xyz不等于0求 x:y:z
若xyz不等于0,且{4x-5y+2z=0,x+4y-3z=0,求x:y:z
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?
1、 已知:2x-3y+z=0,3x-2y-6z=0,xyz≠0,求x²+y²+z²/2x
已知4x-3y-6z=0,x+2y-7z=0,xyz≠0,求2x²+3y²+6z²除以x&
已知实数X,Y,Z满足 X²-6XY+10Y²+4Y+∣Z²-3Z+2∣+4=0,求(X+