x^2-3y^2-8z^2+2xy+2xz+14yz怎样因式分解
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x^2-3y^2-8z^2+2xy+2xz+14yz怎样因式分解
x^2-3y^2-8z^2+2xy+2xz+14yz怎样因式分解
x^2-3y^2-8z^2+2xy+2xz+14yz怎样因式分解
x^2-3y^2-8z^2+2xy+2xz+14yz
=(x^2+y^2+z^2+2xy+2xz+2yz)-4y^2-9z^2+12yz
=(x+y+z)^2-(2y-3z)^2
=(x+y+z+2y-3z)(x+y+z-2y+3z)
=(x+3y-2z)(x-y+4z)
24xy^2z^2(x+y+z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
24xy^2z^2(x+y+z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy
化简(y-x)(z-x)/(x-2y+z)(x+y-2z)+(z-y)(x-y)/(xy-2z)(y+z-2x)+(x-z)(y-z)/(y+z-2x)(x-2y+z)速速回答
化简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]
(2X+Z-Y)/(X^2-XY+XZ-YZ)-(Y-Z)/(X^2-XY-XZ+YZ)
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x²-y²+5x+3y+4(x+y-2xy)(x+y-z)+(xy-1)²
24xy^2*z^2(x+y-z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
若|x-3|+|y+2|+|2z+1|=0,求(xy-yz)(y-x+z)
化简(2x-y-z/x^2-xy-xz+yz)+(2y-x-z/y^2-xy-yz+xz)+(2x-x-y/z^2-xz-yz+xy)
(x^2+yz)/(x^2+x(y-z)-yz)+(y^2-xz)/(y^2+y(x+z)+zx)+(z^2+yx)/(x^2-z(x-y)-yx)最后一项应为:(z^2-xy)/(z^2+z(y-x)-xy)
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