(x+y+z)+(x-y-z)-(x-y+z)先去括号,再合并同类项
先去括号再合并同类项 -3(x-y)+2(3x-2y)
(x+y-z)(x-y+z)=
-2(-3xy+2z)+3(-2xy-5x)先去括号,在合并同类项
(y-x)/(x+z-2y)(x+y-2z)+(z-y)(x-y)/(x+y-2z)(y+z-2x)+(x-z)(y-z
①(x+y+z)(-x+y+z)(x-y+z)(x+y-z)
数学 多项式(x+y-z)(x-y+z)-(y+z-x)(z-x-y)公因式
方向 X Y Z
(x+y+z)^5-(x+y-z)^5-(x+z-y)^5-(z+y-x)^5,
X+Y+Z=?
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
(x+y+z)(-x+y+z)(x-y+z)(x+y-z)怎么算
合并同类项 2x—3(x—2y+3z)+2(3x—3y+2x)