回複:美國奧賽題:一元二次方程(2.5星)

來源: 2009-04-11 21:03:30 [舊帖] [給我悄悄話] 本文已被閱讀:

faint, can not type in x.

One more try

the answer should be

(3/2,7/2) or (13/2, 17/2)