(x+y-z)(x-y+z)+(y-x+z)(y-x-z)分解因式
①(x+y+z)(-x+y+z)(x-y+z)(x+y-z)
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
分解因式x^2(y-z)+y^2(z-x)+z^2(x-y)
初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~
分解因式:f(x,y,z)=x^2(y-z)+y^2(z-x)+z^2(x-y)
(x-y+z)(x+y+z)等于多少.
(x+y+z)*(-x+y+z)*(x-y+z)*(x+y-z)=
计算:(x+y+z)(-x+y+z)(x-y+z)(x+y-z).
(x+y+z)³+(3x-2y-3z)³-(4x-y-2z)³分解因式
分解因式:(1):x(x-y)+y(y-X) 多项式(x+y-z)(x-y+z)-(y+z-X)(Z-x-y)的公因式是
1.设X ,Y,Z 成等差数列,代数式(X-Z)*(X-Z)+ 4(X-Y)(Z-Y)=
x,y,z为正实数 x/(2x+y+z)+y/(x+2y+z)+z/(x+y+2z)