分解式子1.xyz-yz-xz-xy+x+y+z-12.x^2y^2+xy-x^2-y^2+x+y+23.a^4+b^4+c^4-2a^2b^2-2b^2c^2-2c^2a^24.(6x-1)(2x-1)(3x-1)(x-1)+x^2
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分解式子1.xyz-yz-xz-xy+x+y+z-12.x^2y^2+xy-x^2-y^2+x+y+23.a^4+b^4+c^4-2a^2b^2-2b^2c^2-2c^2a^24.(6x-1)(2x-1)(3x-1)(x-1)+x^2
分解式子
1.xyz-yz-xz-xy+x+y+z-1
2.x^2y^2+xy-x^2-y^2+x+y+2
3.a^4+b^4+c^4-2a^2b^2-2b^2c^2-2c^2a^2
4.(6x-1)(2x-1)(3x-1)(x-1)+x^2
分解式子1.xyz-yz-xz-xy+x+y+z-12.x^2y^2+xy-x^2-y^2+x+y+23.a^4+b^4+c^4-2a^2b^2-2b^2c^2-2c^2a^24.(6x-1)(2x-1)(3x-1)(x-1)+x^2
(1)解:原式=(XYZ-YZ)-(XZ-Z)-(XY-Y)+(X-1)
=YZ(X-1)-Z(X-1)-Y(X-1)+(X-1)
=(YZ-Z-Y+1)(X-1)
请问下面几道题上面的符号是什么?
分解因式x²-xy+xz-yz
分解因式:x^2-xy+xz-yz
分解因式x^2-yz+xz-xy
设xyz是非零实数求|x|/x+|y|/y+|z|/z+|xy|/xy+|xz|/xz+|yz|/yz+|xyz|/xyz
xyz-xy-xz+x-yz+y+z-1因式分解
还是因式分解 xyz-xy-xz+x-yz+y+z-1
分解因式x^2y-xy^2+x^2z-xz^2-2xyz+y^2z+yz^2
x^2-xy^2+x^2z-xz^2-2xyz+y^2z+yz^2分解因式
分解式子1.xyz-yz-xz-xy+x+y+z-12.x^2y^2+xy-x^2-y^2+x+y+23.a^4+b^4+c^4-2a^2b^2-2b^2c^2-2c^2a^24.(6x-1)(2x-1)(3x-1)(x-1)+x^2
分解因式x^2-xy+xz-yz=
已知x+y+z=m,xy+xz+yz=n,xyz=p,用含有m,n,p的式子表示(x+3)(y+3)(z+3),
分解因式:xyz-yz-zx-xy+x+y+z-1
分式题:xy=x+y,yz=2(y+z),zx=3(z+x),求xyz/(xy+yz+xz)xy=x+y,yz=2(y+z),zx=3(z+x),求xyz/(xy+yz+xz)
x²-xy+xz-yz
求证不等式 xyz[yz(y+z)+zx(z+x)+xy(x+y)]>=2(xy+yz+xz)^2
若xyz+xy+yz+xz+x+y+z=2008,则x+y+z=多少,
XYZ-XY-XZ+X-YZ+Y+Z-1我知道答案,一定要有点拔(文字),
xyz+3(xy+xz+yz)+9(x+y+z)+27=2013速度