大大

點解你個問題好似有d問題; Q( |4 ^9 e8 J# ~

Originally posted by Triangel at 2007-4-18 01:26 PM:, L9 _; _$ _+ z5 G. ^# r
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc! c! ^' X$ t. J% |2 E( ]

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9 S% Z5 w7 i/ j$ y[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:7 j( z6 I9 m+ ^! D/ @
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
2 m( s2 [! B+ O8 a) G5 Z5 t似IQ題=.=9 t1 E9 F2 h( `& s. b/ ~0 U

$ X+ d. d4 k6 ~/ K5 Z! l[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]