xy/x-z-xy/y-z 分式化简

xy/x-z-xy/y-z 分式化简 分式化简(x^2+yz)/(x^2+(y-x)x-yz)+(y^2-zx)/(y^2+(z+x)y+zx)+(z^2=xy)/(z^2-(x-y)z-xy)再从输一遍好了，{(x^2+yz)÷[x^2+(y-z)x-yz]}+{(y^2-zx)÷[y^2+(z+x)y-zx]}+{(z^2+xy)÷[z^2-(x-y)z-xy]}， 分式 最简公分母x-1分之x,y+1分之y,xy分之z 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) 计算或化简：[（4x-3y）/（3xy²z）]-[（2y-5z）/（3xy²z）]-[（4x+5z）/（3xy²z）] 五羊杯竞赛题x^2+yz/x^2+(y-z)-yz ＋ y^2-zx/y^2+(z+x)y+zx ＋ z^2+xy/z^2-(x-y)z-xy折项再通分，最终化简 X/3=Y/2=Z/5,则分式xy+xz+yz/x^2+y^2+z^2= xy(x-y)+yz(y-z)+zx(z-x)因式分解 一道初二分式计算题(2X+Z-Y)/(X^2-XY+XZ-YZ)-(2X+Y+Z)/(X^2+XY+XZ+YZ) 因式分解：x^-4xy+4y^-z^ 分式计算!xy/x+y=1 yz/y+z=2 xz/x+z=3 求x+y+z=? x+y+z=0,2x-y-7z=0,求分式3xy-4z的平方除以x的平方-y的平方 X+Y+Z=0 ,2X-Y-7Z=0.求分式 3xy-4z^/x^-y^^是平方 3(xy-2z)+(-xy+2z)怎样化简 (1/x+1/y+1/z)×(xy)/(xy+yz+zx) 代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy (2X+Z-Y)/(X^2-XY+XZ-YZ)-(Y-Z)/(X^2-XY-XZ+YZ) 初二数学化简分式x^2 -y^2/xy - xy-y^2/xy-x^2x^2 -y^2/xy - xy-y^2/xy-x^2