化簡下列各代數式
1. 5(2次)x(-5(2次)+6)
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乘
中一maths
2007-10-18 3:03 am
回答 (5)
2007-10-18 3:47 am
✔ 最佳答案
(5^2)[(-5^2)+6] =25(-25+6)
=25×-19
=-475
(5^2)[(-5^2)+6]
=25(25+6)
=25×31
=775
2007-10-18 5:10 am
10x16=160
2007-10-18 3:42 am
answer = 775
收錄日期: 2021-04-13 13:58:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071017000051KK02707