大大

點解你個問題好似有d問題9 a$ Y9 k) \$ \# z2 U3 ]

Originally posted by Triangel at 2007-4-18 01:26 PM:
9 s3 X9 Z* |4 F(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:0 q) R  [1 f: K3 b2 n5 p/ b
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(x-x)= 0 ，所以答案係0，is it?

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唔似a.math題
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$ q6 \1 L' d, N+ @$ a! i. z' V[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]