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What is the value of |x| ?

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What is the value of |x| ? [#permalink] New post 24 May 2012, 20:24
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What is the value of |x| ?

(1) x = –|x|
(2) x^2 = 4
[Reveal] Spoiler: OA

Last edited by Bunuel on 24 May 2012, 23:51, edited 1 time in total.
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Re: What is the value of |x| ? [#permalink] New post 24 May 2012, 23:55
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Re: What is the value of |x| ? [#permalink] New post 31 May 2012, 10:06
|x| ~ x^2 hence, its easy to solve
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Re: What is the value of |x| ? [#permalink] New post 05 Dec 2012, 01:57
What is the value of |x| ?

(1) x = –|x|
x + |x| = 0 means that x could be 0 or x <0. INSUFFICIENT!

(2) x^2 = 4
\sqrt{x^2}=|x|=2. SUFFICIENT!
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Re: What is the value of |x| ? [#permalink] New post 29 Apr 2013, 10:18
Trap: The question ask abt IxI not X
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Re: What is the value of |x| ? [#permalink] New post 16 May 2014, 06:31
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Re: What is the value of |x| ?   [#permalink] 16 May 2014, 06:31
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