(急!!)--幾條f.2數學題!!(要列埋條式)
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Factorize each of the following by using cross method.
1) 3x^(2)-10x-8
2) 2x^(2)+7x-30
3) 6x^(2)-x-1
4) 6x^(2)+31xy+3y^(2)
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(急!!)4條f.2數學題!!
2011-02-09 4:56 am
回答 (2)
2011-02-09 5:08 am
✔ 最佳答案
1)3x^2-10x-8=(3x+2)(x-4)
2)
2x^2+7x-30=(2x-5)(x+6)
3)
6x^2-x-1=(2x-1)(3x+1)
4)
Is this typed correctly?
2011-02-09 5:06 am
Its hard to factorize (4).
Any typing mistake?
Any typing mistake?
收錄日期: 2021-04-22 00:52:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110208000051KK01554