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#276 2013-08-12 03:56:21

EbenezerSon
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Re: Simplify the following:

Now I have learnt that! Thanks much Bobbym!

Okay, back to my question.

27^(n+2) =27^n * 27^2 =  3^(3n) * 3^(6)
.

Why didn't you use  3^(3n) * 3^(6) but rather wrote 9^(n+2) * 3^(n+2).



Thanks in advance.

#277 2013-08-12 04:05:41

bobbym
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Re: Simplify the following:

All that is correct.

Why didn't you use  3^(3n) * 3^(6) but rather wrote 9^(n+2) * 3^(n+2).

Because it was easier to cancel.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#278 2013-08-12 04:38:43

EbenezerSon
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Re: Simplify the following:

Candidly speaking, since I started working on indices I haven't seen nor come accros a problem that could produce different bases as your own. As you made 9^(n+2) *3^(n+2) out of 27^(n+2)

Now I think the method that will be applicable to a problem is the one that must be used.




Thank very much Bobbym, God bless you.

#279 2013-08-12 08:10:19

bobbym
Administrator

Online

Re: Simplify the following:

Hi;

Glad to help and let me know when you need more.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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