大大

點解你個問題好似有d問題- @* v* ?3 z# I0 m# e. `" `' S0 G

Originally posted by Triangel at 2007-4-18 01:26 PM:& x2 G4 R& m8 b! v( y4 a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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4 x1 o6 V9 o( o9 U$ E- a/ `[ 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:
  D. d, H# U7 ^, ^+ Y" e! j  c$ x2 Y# z; ^

% Q# J, O# ?1 v2 U+ M* q/ ~  Q& U2 c(x-x)= 0 ，所以答案係0，is it?

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似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]