GMAT Algebra (Data Sufficiency)

questioner · **Joined:** Tue Apr 13, 2010 8:48 am **Posts:** 449

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!

800score · **Joined:** Thu Jul 05, 2012 11:55 am **Posts:** 63

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.

GMAT Algebra (Data Sufficiency)

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