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

how to solve equations with squares on both sides?

Expert replies
by netigen » Fri Mar 14, 2008 8:19 pm
for e.g.

(x+1)^2 = x^2

can we take sqrt both sides and safely say x+1 = x? doesn't sound right to me.
Join the discussion
Source: — Problem Solving |

by simplyjat » Fri Mar 14, 2008 10:14 pm
When you have to take square root, always consider both positive and negative factors in consideration
Whereas when you are given a square root you can assume it to be positive only...
simplyjat
Join the discussion

by musicdaemon » Sat Mar 15, 2008 12:03 am
The Degree of variable x must be made same on each side,reduce the equation to basic form, then you can proceed with the solution as you would for a simple quadratic equation:

i.e.
(x+1)^2= x^2
=> x^2+2x+1 = x^2.................. (now you can cancel x^2 both sides)
=> 2x+1=0
=> x= -1/2...................................Ans


Hope you get it...!!
Let the Game begin
Join the discussion

for sure you can take sqrt both side but thats gonna get you to |x+1| = |x| and if you are not lost with that it's ok to go ahead, otherwise just do the calculations in the previous post ;)
netigen wrote:for e.g.

(x+1)^2 = x^2

can we take sqrt both sides and safely say x+1 = x? doesn't sound right to me.
Join the discussion