6, 2√2 - 7√2 + 3√2
9. √3 +√27
12 √6-√3/2
15. 2√3 x 3√21
18 . √486 - √96 + √24
20, √2/3 + √6 - 3√242/3
22, √28 x√35 x √20
24, 2√3 (√15 - 3√5 )
26 ,, 3√7 (-√14+2√2 - 3√3)
28 (√2+ √5) ( √2 + √5)
收錄日期: 2021-04-13 13:11:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070416000051KK05520