Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

GMAT Prep question

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Thu Feb 26, 2009 12:50 pm
Location: Chicago
Thanked: 3 times
by rossmj » Fri Apr 17, 2009 7:26 am
If x does not equal 0, then sqrt(x^2)/x=
A -1
B 0
C 1
D x
E lxl/x

I was under the impression that imaginary numbers were not tested on the GMAT and immediately ruled out x being negative because it was inside a sqrt.
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 151
Joined: Wed Feb 11, 2009 2:45 am
Thanked: 3 times

by deepoe » Fri Apr 17, 2009 8:15 am
It's C or not?
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 60
Joined: Thu Feb 26, 2009 12:50 pm
Location: Chicago
Thanked: 3 times

by rossmj » Fri Apr 17, 2009 8:22 am
No E thus my confusion over the possibility of x being negative inside a square root
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 151
Joined: Wed Feb 11, 2009 2:45 am
Thanked: 3 times

by deepoe » Fri Apr 17, 2009 9:01 am
| X | means that -x = x

So it is possible but I can't give a clear explanation :$
Top
Join the discussion
User avatar
MBA Student
Posts: 1194
Joined: Sat Aug 16, 2008 9:42 pmFollowed by: 17 members
Location: Paris, France
Thanked: 71 times
GMAT Score:710

by gmat740 » Fri Apr 17, 2009 10:29 am
sq-rt(4) = +2 and -2

so,
sq-rt(2^2) = +2 and -2

so,

sqrt(x^20 )= +x and -x = |x|

Hope this helps

Karan
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 435
Joined: Sat Sep 27, 2008 2:02 pmFollowed by: 1 member
Location: San Jose, CA
Thanked: 43 times
GMAT Score:720

by dumb.doofus » Fri Apr 17, 2009 9:35 pm
IMO E, if x is not negative.. other choices can be eliminated..
One love, one blood, one life. You got to do what you should.
https://dreambigdreamhigh.blocked/
https://gmattoughies.blocked/
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 152
Joined: Wed Mar 12, 2008 4:36 pmFollowed by: 2 members
Thanked: 8 times

absolute value deals with two possibilities.

by artistocrat » Sat Apr 18, 2009 1:01 pm
we are given no information about x, other than it is not equal to zero. therefore, x can be positive OR negative. choice E deals with both possibilities in the absolute value of x.
Top
Join the discussion
Legendary Member
Posts: 876
Joined: Thu Apr 10, 2008 8:14 am
Thanked: 13 times

by ketkoag » Mon Apr 20, 2009 10:13 am
E for me as well..
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 134
Joined: Fri Jan 23, 2009 1:23 pmFollowed by: 15 members
Location: California
Thanked: 59 times

Re: GMAT Prep question

by dabral » Mon Apr 20, 2009 1:33 pm
Here is my video explanation for this problem. This is all work in progress as I slowly assemble all the solutions to GMATPrep questions.

https://www.gmatquantum.com/shared-posts ... tic10.html
rossmj wrote:If x does not equal 0, then sqrt(x^2)/x=
A -1
B 0
C 1
D x
E lxl/x

I was under the impression that imaginary numbers were not tested on the GMAT and immediately ruled out x being negative because it was inside a sqrt.
Top
Join the discussion