如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/22 01:55:50
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)应
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
应用平方差公式
a^2-b^2=(a+b)(a-b)
(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
=[(x+y)^2-z^2][z^2-(x-y)^2]
=-z^4+[(x+y)^2+(x-y)^2]z^2-(x+y)^2(x-y)^2
=-z^4+2(x^2+y^2)z^2-(x^2-y^2)^2
这算是化简了
看不懂 什么叫化简啊...这还不简吗....
学过这个公式么？(a+b)*(a-b)=a平方-b平方
前面两个把x+y当整体
最后一个提出个负号，然后就是后面两个把x-y当整体
再套公式应该很容易了
不懂了
-x^4 + 2 x^2 y^2 - y^4 + 2 x^2 z^2 + 2 y^2 z^2 - z^4
或着-x^4 - (y^2 - z^2)^2 + 2 x^2 (y^2 + z^2)
如何化简(x+y+z)(x+y-z)(x-y+z)(-x+y+z)
因式分解(x+y-z)*[(x+y)^2+(x+y)*z+z^2]怎么化简
代数式化简已知z^2=x^2+y^2化简：(x+y+z)(x-y+z)(-x+y+z)(x+y-z)
x-y/(z-x)(z-y) 一y-z/(x-y)(x-z) ＋z-x/(y-z)(y-x)
化简:分式加减化简:(2x-y-z)/(x-y)(x-z)+(2y-z-x)/(y-z)(y-x)+(2z-y-x)/(z-y)(z-x)
x^-(y-z)^/(x+y)^-z^
计算（x+y-z)(x-y-z)
计算：(x-y+z)(-x+y+z)
(x+y-z)(x-y+z)=
x y y ...y z x y ...y z z x ...y ........z z z ...x 求解行列式.
化简下列式子-（7X-Y-2Z）-{[4X-(X-Y-Z）-3X+Z]-X}
x+y>z 0
用乘法公式计算(x+y)(x-y)+(-y-z)(-y+z)+(-x+z)(z+x)
计算：（X+y+z)(-x+y+z)(x-y+z)(x+y-z)
（x+y-z）（x-y+z）-（x+y+z）（x-y-z）
因式分解 ：（x+y-z)(x-y-z)+(y-x+z)(y-x-z)
因式分解测试题x(x+y-z)+y(x+y-z)+z(z-x-y)
(x+y+z)(-x+y+z)(x-y+z)(x+y-z)等于什么?