1.
simplify
( √7-√6)(√7+√24)
√=開方
mathx~比個ans我~f.2 q
2007-06-17 4:38 am
回答 (2)
2007-06-17 4:43 am
✔ 最佳答案
( √7-√6)(√7+√24)= 7 + √168 - √42 - 12
= 7 + 2 √42 - √42 - 12
=√42 - 5
參考: My Maths Knowledge
2007-06-17 4:45 am
( √7-√6)(√7+√24)
=( √7-√6)(√7+2√6)
=7+2√7√6 - √6√7 -12
= √7√6 - 5
=( √7-√6)(√7+2√6)
=7+2√7√6 - √6√7 -12
= √7√6 - 5
收錄日期: 2021-04-12 21:57:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070616000051KK04304