你可能感兴趣的试题
2x+4y-z=0 2x+2y-3z=0 2x+y-Z=0 x+2y-3z=0
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
2x+(﹣3y+4z) 2x+(3y﹣4z) 2x+(﹣3y﹣4z) 2x+(3y+4z)
(3-x)(3+x)=9-x2 -m2+n2=(m+n)(-m+n) (y+1)(y-3)=-(3-y)(y+1) 4yz-2y2z+z=2y(2z-yz)+z
(x+2y-3z)(x-2y-3z). (x-2y-3z)(x-2y+3z) (x+2y+3z)(x+2y-3z). (x+2y+3z)(x-2y-3z)
2x+(﹣3y+4z) 2x+(3y﹣4z) 2x+(﹣3y﹣4z) 2x+(3y+4z)
y2-(6x-y+3z)=y2-6x-y+3z 9y2-[x-(5z+4)]=9y2-x+5z+4 x+[-6y+(5z-1)]=x-6y-5z+1 -(7x+y)+(z+4)=-7x-y-z-4
2x -y+2z =0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
6x-3y+2z=31 4x-y+2z=31 6x-3y+2z=10 4x-y+2z=10
X>H>Y>Z Y>Z>X>H Z>Y>X>H X>H>Z>Y
2X+Z=3Y 4X+Z=4Y 2X+3Z=7Y 8X+Z=6Y
ω=3x+y+2z ω=3x+y-2z ω=3x+y+z ω=2x+2y+z
2x+4y-z=0 2x+2y-3z=0 2x+y-z=0 x+2y-3z=0
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0