中二數學問題…（但都幾深）
回答 (2)
2007-03-17 12:57 am
✔ 最佳答案
201703 = 20 × (100)2 + 17 × (100) + 3= 20x2 + 17x + 3
where x = 100
20x2 + 17x + 3 = (5x + 3)(4x + 1)
So,
201703 = [5(100) + 3][4(100) + 1]
= 503 × 401
參考: My maths knowledge
2007-03-18 10:20 pm
如果加解 20x2 + 17x + 3 = (5x + 3)(4x + 1) 就更好喇!
收錄日期: 2021-04-18 21:06:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070316000051KK02115