大大

點解你個問題好似有d問題2 Z5 L' r1 _' a5 C2 X

Originally posted by Triangel at 2007-4-18 01:26 PM:: m0 G2 Y. y6 S4 O6 y8 n' y
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc5 q5 [8 e& o) B- q

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& B4 X: |' a. G$ l- 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:
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題- `/ I. I6 S/ @2 e8 ^4 \$ N
似IQ題=.=0 }: Q* D0 k  i- ]
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]