(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式
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(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式(
(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式
(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式
(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式
(x+y-z)(x-y+z)+(y-x+z)(y-x-z)
= -(x+y-z)(-x+y-z)+(y-x+z)(y-x-z)
= -(x+y-z)(y-x-z)+(y-x+z)(y-x-z)
= (y-x-z)(y-x+z-x-y+z)
= 2(y-x-z)(Z-x)
=x^2-xy+xz+xy-y^2+yz-xz+yz-z^2 + y^2-xy-yz-xy+x^2+xz+yz-xz-z^2
=2x^2-2z^2 -2xy +2yz
=2(x-z)(x+z) -2y(x-z)
=2(x-z)(x-y+z)
(x+y-z)(x-y+z)-(x+y+z)(x-y-z)
(x+y-z)*(x+y-z)-(x-y+z)*(x-y-z)等于多少
(x+y+z)(x-y+z)+(y-x+z)(y-x-z)求过程
x分之y+z=y分之z+x=z分之x+y(x+y+z不等于0),求x+y+z分之x+y-z
分式加减法:已知x+y/z=x+z/y=y+z/x(x+y+z≠0),求x+y-z/x+y+z
已知x+y/z=x+z/y=y+z/x(x+y+z≠0),求x+y-z/x+y+z的步骤
已知x+y/z=x+z/y=y+z/x(x+y+z≠0),求x+y-z/x+y+z的步骤
(x-y+z)(x+y+z)等于多少.
(x+y+z)²-(x-y-z)²
(x+y-z)乘以(x-y-z)等于?
(x-2y+z)(-x+2y+z)
(x-y-z)乘以(z-x+y)等于?
(x-y+z)(x+y+z)等于多少?
(x-y+z)(x+y-z)计算
(x+y+z)²-(x-y-z)²
x+2y-z)(x+2y-z)
(x-y+z)²-(x+y-z)²
(x-y-z)*( )=x²-(y-z)²