PLZ Facror out 2x^2 -3x -2?
回答 (2)
2016-03-02 6:19 am
✔ 最佳答案
2x² - 3x - 2= 2x² + x - 4x - 2
= (2x² + x) - (4x + 2)
= x(2x + 1) - 2(2x + 1)
= (x - 2)(2x + 1)
2016-03-02 6:20 am
(2x + 1)(x + -2)
收錄日期: 2021-04-18 14:32:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160301221710AAQIkdF