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 Post subject: GRE Number TheoryPosted: Sat Sep 22, 2012 5:21 am

Joined: Sun May 30, 2010 3:15 am
Posts: 424

I do not understand an example.

The example says "Factor: 3² + 12²" and provides the answer of 3²(1 + 4²).
This gave me 3² + 12^4.

If you look at the first problem in the example "Factor: 7² + 7^5", the provided answer of 7²(1 + 7³), this says that (7²)(7³) = 7^5. So why wouldn't (3²)(4²) = 12^4?

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 Post subject: Re: GRE Number TheoryPosted: Sat Sep 22, 2012 5:32 am

Joined: Sun May 30, 2010 2:23 am
Posts: 498

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