| TriTri | A-Math 加分題 |

Triangel

第一個答中有獎
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(x - a) = x - a* p4 ]5 G9 t% H- }  X0 j6 [
(x - a) (x - b) = x^2 – ax – bx + ab
2 w5 p$ t% B# k& c8 W9 _2 c(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 + abx + acx + bcx - abc) B1 }: ^; k" p' e4 D2 e: n" X
(x - a) (x - b) (x – c) (x - d) = x^4 – ax^3 – bx^3 – cx^3 – abx^2……………….. +abcd
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9 }+ D7 Z9 o( [: \* U/ L; _" P1 w(x-a) (x-b) (x-c) (x-d) (x-e)……..(x-z) = ???3 x2 f5 M; Y2 U
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[ Last edited by Triangel on 2007-4-18 at 01:52 PM ]

大大

點解你個問題好似有d問題) i$ ]$ X% o9 P/ o* D0 v( U

Originally posted by Triangel at 2007-4-18 01:26 PM:0 }: k7 V! T. \; y9 G9 Z* a
(x - a) (x - b) (x – c) =  x^3 – ax^2 – bx^2 – cx^2 – abx + acx + bcx - abc
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[ Last edited by 大大 on 2007-4-18 at 01:54 PM ]

Triangel

Originally posted by 大大 at 2007-4-18 01:41 PM:, L  ?! \$ ^& [& z5 ~
咁難既=.="
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[ Last edited by 大大 on 2007-4-18 at 01:52 PM ]

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Thanks! 更正啦

littlenic

Originally posted by Triangel at 2007-4-18 01:26 PM:1 v4 ?5 Y- H7 [7 A' E8 }! _6 }
第一個答中有獎
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(x - ...

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(x-x)= 0 ，所以答案係0，is it?

大大

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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3 I: [9 }# H( d# k唔似a.math題
: S. @7 |& a) h1 }6 y) R# ]9 T似IQ題=.=
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[ Last edited by 大大 on 2007-4-18 at 01:57 PM ]

Triangel

Originally posted by littlenic at 2007-4-18 01:54 PM:
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(x-x)= 0 ，所以答案係0，is it?

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Bingo~

waikong

我係學校個學生會單張見過
( L& h/ l2 ?# _- i" w諗左一陣先諗到

playbr2

我吾識答啊http://i72.photobucket.com/albums/i162/xcopy/Monkey/049.gif~~~ http://i72.photobucket.com/albums/i162/xcopy/Monkey/022.gif

karen0123

(哭)~~~~~其實我都知係0.........4 [" [" d$ @2 ]; X5 I

2 @8 R! |$ F+ u) \9 J1 C5 T這條問題，貼落吹水版，名副其實
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* d/ v, Z% g: v5 U2 n[ Last edited by karen0123 on 2007-4-18 at 05:51 PM ]