
Originally posted by Triangel at 2007-4-18 01:26 PM:8 x# Q+ T; G" `" ?2 M8 v& i) M2 I
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc& ]. X; X! j& `/ { W+ l
0 _ F1 j% ~: t, u
Originally posted by 大大 at 2007-4-18 01:41 PM:
咁難既=.=", V0 v( n5 U! K5 S
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
Originally posted by Triangel at 2007-4-18 01:26 PM:! Z# ]" q' F4 s
第一個答中有獎
(x - ...
Originally posted by littlenic at 2007-4-18 01:54 PM:- S! `5 ?! _. z8 o$ J7 r0 c
# g. ~2 x3 d% D% T- \# \! Y. f
(x-x)= 0 ,所以答案係0,is it?
Originally posted by littlenic at 2007-4-18 01:54 PM:
: \ B/ [0 ^* H/ z3 f: \
(x-x)= 0 ,所以答案係0,is it?
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