Lost: if x>1

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Lost: if x>1

by moron » Fri Dec 04, 2015 12:40 pm
I chose E and it was wrong...Can you suggest similar DS questions/tutorials/note for practice ?

Q) Is x>1?

a) (x+1)(|x|-1)>0
b) |x| <5
Source: — Data Sufficiency |

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by GMATGuruNY » Fri Dec 04, 2015 12:48 pm
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by Matt@VeritasPrep » Fri Dec 11, 2015 2:00 pm
Absolute values are tricky. Purple Math is a nice place to start: here's an intro, here's how to work with absolute equations, and here's how to work with absolute inequalities.

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by Brent@GMATPrepNow » Fri Dec 11, 2015 2:04 pm
Here's a free video on absolute value inequalities: https://www.gmatprepnow.com/module/gmat- ... /video/985

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