BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Sun · 9:30 AM to 12:30 PM ET
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
GMATOnDemand Start 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 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

From GMATPrep

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Community Manager
Posts: 789
Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member
Location: Silicon valley, California
Thanked: 30 times

Re: From GMATPrep

by jayhawk2001 » Sat Aug 04, 2007 2:51 pm
The sqrt of a number cannot be negative. We are given x < 0 and so
answer has to be -x (which is a positive number).
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 214
Joined: Fri Jul 20, 2007 1:35 am
Thanked: 3 times

by beny » Sat Aug 04, 2007 6:25 pm
Are you sure this is a GMATPrep question...? GMAT does not use imaginary numbers.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Community Manager
Posts: 789
Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member
Location: Silicon valley, California
Thanked: 30 times

by jayhawk2001 » Sat Aug 04, 2007 6:44 pm
beny wrote:Are you sure this is a GMATPrep question...? GMAT does not use imaginary numbers.
Can you please clarify on what the imaginary number is in this case.

-x|x| is positive when x<0. So, we are not trying to take the
square-root of a negative number to get an imaginary number.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 277
Joined: Sun Jun 17, 2007 2:51 pmFollowed by: 1 member
Location: New York, NY
Thanked: 6 times

by givemeanid » Sun Aug 05, 2007 6:38 am
The sqrt of a number cannot be negative.
Every positive number has TWO square roots. One positive, one negative.

36 = 6*6 = -6 * -6
sqrt(36) = 6 or -6
So It Goes
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Community Manager
Posts: 789
Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member
Location: Silicon valley, California
Thanked: 30 times

by jayhawk2001 » Sun Aug 05, 2007 8:59 am
givemeanid wrote:
Every positive number has TWO square roots. One positive, one negative.

36 = 6*6 = -6 * -6
sqrt(36) = 6 or -6
Actually let me make a small distinction --

If x^2 = 36, you can say x = +6 or x = -6

If you are asked to find sqrt(36), there is only 1 root and that is +6.

I learnt this important concept through this forum. Please check https://www.beatthegmat.com/viewtopic.php?t=2183
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 62
Joined: Fri Jul 13, 2007 2:06 pm

by chatekar » Sun Aug 05, 2007 9:51 am
jayhawk2001,

I'm totally confused. First of all I haven't clearly understood the explanation for my question.
And the other thing, I don't understand why sqrt(36) is always 6?

Thanks
Suhas
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 277
Joined: Sun Jun 17, 2007 2:51 pmFollowed by: 1 member
Location: New York, NY
Thanked: 6 times

by givemeanid » Sun Aug 05, 2007 12:21 pm
Actually let me make a small distinction --

If x^2 = 36, you can say x = +6 or x = -6

If you are asked to find sqrt(36), there is only 1 root and that is +6.

I learnt this important concept through this forum. Please check https://www.beatthegmat.com/viewtopic.php?t=2183

From the thread you linked to: "Every positive number n has two square roots, one positive and the other negative, but root-n denotes the positive number whose square is n".

Son of a *#$@%. Completely missed that. Thanks buddy.
So It Goes
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1