幾條簡單既中2

2007-10-13 5:28 am
Factorize
2x+ax
3x+6y
7a+abc
ax+bx
7xy+49y
2+4a+6a^2

回答 (2)

2007-10-13 5:36 am
✔ 最佳答案
1.
2x+ax
=x(2+a)

2.
3x+6y
=3(x+2y)

3.
7a+abc
=a(7+bc)

4.
ax+bx
=x(a+b)

5.
7xy+49y
=7y(x+7)

6.
2+4a+6a^2
=2+2a(2+3a)
=2(1+a(2+3a))
or
=2(1+2a+3a^2)
參考: 自己
2007-10-13 5:38 am
唔知啱唔啱呢?

2x+ax
= x(2+a)

3x+6y
= 3(x+2y)

7a+abc
= a(7+bc)

ax+bx
= x(a+b)

7xy+49y
= 7y(x+7)

2+4a+6a^2
= 2(1+2a+3a^2)


收錄日期: 2021-04-19 21:28:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071012000051KK03624

檢視 Wayback Machine 備份