
Originally posted by Triangel at 2007-4-18 01:26 PM:! W5 r7 ]$ ~2 {
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
Originally posted by 大大 at 2007-4-18 01:41 PM:
咁難既=.="
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
Originally posted by Triangel at 2007-4-18 01:26 PM:9 m q5 {0 g. b6 @: J* V
第一個答中有獎% m7 }* @3 d; K8 M) L+ ^- ~" M& g
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(x - ...
Originally posted by littlenic at 2007-4-18 01:54 PM:
- }( w0 l. v3 ^; v& a' F
(x-x)= 0 ,所以答案係0,is it?
Originally posted by littlenic at 2007-4-18 01:54 PM:5 V4 ?4 y4 T3 ^" c# ~' {! n% F/ I+ }
c. y7 i+ }7 n! C! Y' y: I
(x-x)= 0 ,所以答案係0,is it?
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