Quod Erat Demonstrandum

2011/01/29

無聊因式分解

Filed under: Junior Form Mathematics — johnmayhk @ 6:41 下午
Tags:

liszenga 留言"why there aren’t answer of factorization Quiz and worksheet!!"

因為

1.我仍然沒有動力上載甚麼(太多了);
2.這網誌提供的資訊是免費的,質素難以保證;

故此,請瀏覽者見諒。

要知答案?很簡單,比如想知

Factorize x^2 - 5x - 6

的答案,可往

http://www.wolframalpha.com/

自己動手輸入:

factor x^2-5x-6

一按 enter 立即得出。

有很多想寫的東西,可是因為時間安排不能暢談,唯給幾道無聊的因式分解題目作結。初中同學,自己試做,再用上述的連結(Wolfram Alpha)對對答案吧。

Factorize the following (over \mathbb{Z}).

1. x^4 - x^2 + 16 (Hint)

2. x^5 + x + 1 (Hint)

3. (1 + x + x^2 + x^3)^2 - x^3 (Hint)

2 則迴響 »

  1. Hi,

    It is thoughtful of you to provide the means for students to check their answers. It is an important skill that students ought to cultivate on their own. Happy new year!

    Cheers,
    Wen Shih

    迴響 由 Wen Shih — 2011/01/30 @ 8:48 下午 | 回覆

  2. Thank you Wen Shih! Happy New Year!!

    迴響 由 johnmayhk — 2011/02/01 @ 9:32 上午 | 回覆


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