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gnatynaffit
 Post subject: Sq Root Question from GMAT Prep 2
PostPosted: Thu Jan 14, 2010 10:29 am 
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Joined: Sun Jul 19, 2009 4:32 pm
Posts: 2
How do you solve: ( sq rt of ( 9+ sq rt of (80)) + sq rt of( 9- sq rt of (80)))^2

Answer should be 20. Thanks in advance!
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VP_Help
 Post subject: Re: Sq Root Question from GMAT Prep 2
PostPosted: Mon Jan 18, 2010 7:53 am 
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Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
I think there may be some notation issues on this question that are hard to see in a text-based format.
Will you send us a screen shot of this question? help@veritasprep.com

We'd be happy to help you.
If I remember it correctly, it gets solved using the (a+b)(a-b)=a^2 - b^2 pattern...

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