x(x-1)>0 - Concept problem - The Beat The GMAT Forum - Expert GMAT Help & MBA Admissions Advice

x(x-1)>0 - Concept problem

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batbond007: Senior | Next Rank: 100 Posts; Posts: 31; Joined: Tue Sep 29, 2009 2:03 pm

by batbond007 » Fri Dec 18, 2009 8:20 am

Given the equation x(x-1)>0 what can be predict about x whether x>1 ,etc...

I have forgotten how we used to solve this. Any quick pointers on how to solve it or tutorials covering the same will be very helpful.

Thanks.

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Source: Beat The GMAT — Problem Solving | Fri Dec 18, 2009 8:20 am

sunil_snath: Senior | Next Rank: 100 Posts; Posts: 39; Joined: Wed Nov 18, 2009 8:41 am; Thanked: 3 times

by sunil_snath » Fri Dec 18, 2009 8:34 am

I can think of the following

x not equal to 0 or 1
x and x-1 are both either positive or negative.

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