回複：美國奧賽題：一元二次方程（2.5星）

來源: Kaolin007 於 2009-04-11 12:34:47 [] [舊帖] [給我悄悄話] 閱讀數 : (71 bytes)

after 1 hr work, the answer is:

(sqrt 355)/2

seems right.

所有跟帖： 

• faint, it is 51 in original equation, not 5! -Kaolin007- ♂ 給 Kaolin007 發送悄悄話 (0 bytes) () 04/12/2009 postreply 00:08:28

請您先登陸，再發跟帖！