因式分解以下各題:
1)x^2+6x+9
2)x^2-8x+16
3)x^2-64
4)x^2+7x+10
5)x^2-6x+5
6)x^2+7x+10
因式分解(help)
2007-08-23 11:29 pm
回答 (2)
2007-08-23 11:38 pm
✔ 最佳答案
1)x^2+6x+9=(x+3)(x+3)
=(x+3)^2
2)x^2-8x+16
=(x-4)(x-4)
=(x-4)^2
3)x^2-64
=(x+8)(x-8)
4)x^2+7x+10
=(x+2)(x+5)
5)x^2-6x+5
=(x-1)(x-5)
6)x^2+7x+10
(x+2)(x+5)
參考: 自己
2007-08-23 11:39 pm
1. (x+3)^2
2. (x-4)^2
3. (x+8)(x-8)
4. (x+5)(x+2)
5. (x-5)(x-1)
6. (x+5)(x+2)
2. (x-4)^2
3. (x+8)(x-8)
4. (x+5)(x+2)
5. (x-5)(x-1)
6. (x+5)(x+2)
參考: Me
收錄日期: 2021-04-23 17:16:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070823000051KK03153