Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
GMAT Club

 It is currently 29 Mar 2017, 20:04

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# If x2>1?

Author Message
TAGS:

### Hide Tags

Intern
Joined: 08 Jul 2011
Posts: 17
Followers: 0

Kudos [?]: 1 [0], given: 9

### Show Tags

12 Feb 2012, 12:00
If X2>1 {X2 being X squarred}

Then X> +/- 1
Isn't it?
Or is it X>1 and X<-1??
Math Expert
Joined: 02 Sep 2009
Posts: 37691
Followers: 7416

Kudos [?]: 99963 [1] , given: 11127

### Show Tags

12 Feb 2012, 13:21
1
KUDOS
Expert's post
x^2>1 --> x<-1 or x>1. You can look at this in another way: x^2>1 is the same as |x|>1 --> x<-1 or x>1.

Following might be helpful in solving inequalities:
x2-4x-94661.html#p731476
inequalities-trick-91482.html
data-suff-inequalities-109078.html
range-for-variable-x-in-a-given-inequality-109468.html?hilit=extreme#p873535
everything-is-less-than-zero-108884.html?hilit=extreme#p868863
_________________
Intern
Joined: 08 Jul 2011
Posts: 17
Followers: 0

Kudos [?]: 1 [0], given: 9

### Show Tags

12 Feb 2012, 22:00
Thanks Bunuel. I think it is clear now.
Re: If x2>1?   [#permalink] 12 Feb 2012, 22:00
Similar topics Replies Last post
Similar
Topics:
x^2=>x??? 2 24 May 2013, 15:15
4 x^2 - x < 0 4 13 May 2012, 12:54
1 Square root of X^2? 10 16 Jun 2011, 22:36
2^x+2^x+2^x+2^x = 2^n 5 12 Jan 2011, 22:59
denotes biggest integer smaller than x. Is > ? 1. x= +1 6 31 May 2008, 00:14
Display posts from previous: Sort by