(steps please)
(√300 + √3)(√300 - √3)
Square roots
2012-08-25 8:54 pm
回答 (1)
2012-08-25 9:05 pm
✔ 最佳答案
(√300 + √3)(√300 - √3)=(√(100x3) + √3)(√(100x3) - √3)
=(10√3 + √3)(10√3 - √3)
=11√3 x 9√3
=99 x 3
=(100 - 1) x 3
=300 - 3
=297
參考: me
收錄日期: 2021-04-20 13:16:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120825000051KK00253