大大

點解你個問題好似有d問題
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Originally posted by Triangel at 2007-4-18 01:26 PM:
' T! a: I9 F* f* Z$ ](x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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  y' }4 A! S) |' b7 J[ 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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$ q4 J5 i0 m3 C1 v- ~/ Q; T) P(x-x)= 0 ，所以答案係0，is it?

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& v: ^) Y7 p+ a' b" r7 ]9 f' \唔似a.math題
. O: k# J, ]$ P. y5 v) `似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]