
Originally posted by Triangel at 2007-4-18 01:26 PM:+ L# {8 Y% g' M) q1 n. a4 E
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# L1 y3 G6 p4 T+ M% e; F
Originally posted by 大大 at 2007-4-18 01:41 PM:7 E; @5 K* t3 F' g* A" C
咁難既=.=", V( a; m6 s& X4 I# P
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
Originally posted by Triangel at 2007-4-18 01:26 PM:
第一個答中有獎
(x - ...
Originally posted by littlenic at 2007-4-18 01:54 PM:1 @( Z+ A2 ?) K6 d
( Z& r, J8 |1 m+ l
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(x-x)= 0 ,所以答案係0,is it?
Originally posted by littlenic at 2007-4-18 01:54 PM:
(x-x)= 0 ,所以答案係0,is it?
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