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 Post subject: Re: GMAT Algebra (Data Sufficiency)
PostPosted: Sun Aug 05, 2012 1:07 pm 
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I have a question to this problem: if x is greater than -1 but smaller than 3, then x could be 0. Therefore, the result could be equal 0 or greater than 0. Is that right or am I mistaking something?

Thank you very much for your help!


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 Post subject: Re: GMAT Algebra (Data Sufficiency)
PostPosted: Sun Aug 05, 2012 1:12 pm 
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Joined: Thu Jul 05, 2012 11:55 am
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questioner wrote:
I have a question to this problem: if x is greater than -1 but smaller than 3, then x could be 0. Therefore, the result could be equal 0 or greater than 0.
If x = 0 , then the expression possesses the only one definite value
(0 – 4)(0 – 3)(0 + 2)(0 + 1) = 24 , which is positive.


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