Why?

解方程:

x^2 - 1 = 0.

>>>>>

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Are you looking for an answer beyond math?

x^2 = 1

x = +/-1.

所有跟帖: 

这么简单呀 -whatday- 给 whatday 发送悄悄话 (0 bytes) () 02/11/2012 postreply 13:10:33

不对吧?哥俩站一起还没个光棍宽呀,肯定不对 -askerfor- 给 askerfor 发送悄悄话 (0 bytes) () 02/11/2012 postreply 13:38:11

Please ? -Lucidus- 给 Lucidus 发送悄悄话 Lucidus 的博客首页 (0 bytes) () 02/11/2012 postreply 13:43:43

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