Maths problem: how to do (b), thanks?
回答 (1)
2020-08-09 9:14 pm
✔ 最佳答案
(b) y² +7y - 8= y² +(8y - y) - 8
= (y² - y) + (8y - 8)
= y(y - 1) + 8(y -1)
= (y+8)(y -1)
收錄日期: 2021-04-24 07:55:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200809124507AANjwo3