大大

點解你個問題好似有d問題1 V# C9 E/ A& I) n* ^

Originally posted by Triangel at 2007-4-18 01:26 PM:" b- d# T% o+ ]
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ 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:8 i3 f3 {# \7 U+ x4 ~
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. X8 V! E% m$ {- P3 R2 [5 l(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題; r: I! S6 H+ L; x+ U% i( d+ Q
似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]