f2maths {factorize}急急急 10點

2007-12-25 11:31 pm
10(a+2)+5(a+2)(a+2)
= ???
= ???
= ???
= ???
=5(a+2)(a+4)
唔明點計到依個答案
請列出清楚步驟=]

回答 (2)

2007-12-25 11:37 pm
✔ 最佳答案
10(a+2)+5(a+2)(a+2)
= 5(a+2)(2+a+2)
= 5(a+2)(a+4)

There are two terms:
10(a+2) and 5(a+2)(a+2)

There is one common factor:
5(a+2)

10(a+2)/5(a+2) = 2
5(a+2)(a+2)/5(a+2) = a+2
2007-12-25 11:59 pm
The answer is ......

10(a+2)+5(a+2)(a+2)
= 5(a+2)(2+a+2)
= 5(a+2)(a+4)

There are two terms:
10(a+2) and 5(a+2)(a+2)

There is one common factor:
5(a+2)

10(a+2)/5(a+2) = 2
5(a+2)(a+2)/5(a+2) = a+2


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