
Originally posted by Triangel at 2007-4-18 01:26 PM:
(x - a) (x - b) (x – c) = x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc6 T& ~, D% i W5 \- S4 g0 ?$ b
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Originally posted by 大大 at 2007-4-18 01:41 PM:
咁難既=.="% _0 F' g5 P5 T. `9 V
[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]
Originally posted by Triangel at 2007-4-18 01:26 PM:& K3 g6 L* }! M) R; P
第一個答中有獎
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(x - ...
Originally posted by littlenic at 2007-4-18 01:54 PM: Y* _5 R" s6 p" _9 L2 c1 K& _
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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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