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:
5 C  }0 Z& g$ t* l% x% Q4 y. e0 [(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 H5 o8 c9 H, v  [: H& X; D
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, _7 s6 v' x* B# _(x-x)= 0 ，所以答案係0，is it?

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0 s5 A) J+ a0 r9 q唔似a.math題
1 s, l5 C' n: ?. w* \  c  P似IQ題=.=
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" j8 v0 O  s( \' R: ^) Y3 Y[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]