大大

點解你個問題好似有d問題  |  R" Y9 N8 h6 U/ g1 o

Originally posted by Triangel at 2007-4-18 01:26 PM:
/ n0 ~: M3 f6 m; n; o2 S7 L* ^(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc# B) W( T9 Y$ O+ t* l8 j" p1 N
0 n1 U, ~& a! c% ~

- _6 U9 t$ z1 W( `. }
1 F' e2 O0 M. p9 V: W
[ 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:
7 {; p% I  H0 b: M* c: f! }; A/ m, t& q; [

6 h. c# p  X3 I* Q( P. C' o( G(x-x)= 0 ，所以答案係0，is it?

" o% D* d! i- X! V7 M1 B! a
. G$ [# k1 W0 Y8 A2 O
/ k/ p  b3 L, ~) D9 Y% X; y3 z3 N' P唔似a.math題
. J) a; h0 l3 X似IQ題=.=2 T8 F3 F# {& f, O$ z+ Y

4 l$ G2 f+ ~6 H' u* t$ D# ]+ n[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]