大大

點解你個問題好似有d問題( o6 T5 ^+ j9 E/ K' a' S

Originally posted by Triangel at 2007-4-18 01:26 PM:
$ M1 X) E7 u8 c( t. C8 t(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc: u8 j$ J( j( K
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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:3 Q: N: N! v+ ]  ^4 v( _
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
( G" |  R8 m* M% J/ `9 r- T0 g似IQ題=.=
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; \  i3 F( I$ A/ `9 c[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]