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 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

130-point score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

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

VIC problem

Expert replies
Source: — Problem Solving |

by truplayer256 » Sat Oct 24, 2009 6:01 pm
(x+y)^(2)=x^2+2xy+y^2

(x-y)^(2)=x^2-2xy+y^2

(x+y)^(2)-(x-y)^(2)=2xy+2xy=4xy

2^(x+y)^(2)/2^(x-y)^(2)=2^[(x+y)^(2)-(x-y)^(2)]=2^4xy

xy=1

2^4=16
Join the discussion

A more simple way

by Leon1984 » Sat Oct 24, 2009 6:18 pm
x^2+2xy+y^2 x^2+y^2
2 2 *2^2 4
------------- = ------------- = ------ = 16
x^2-2xy+y^2 x^2+y^2
2 2 *2^-2 1/4
Leon
Join the discussion

by hongwang9703 » Tue Oct 27, 2009 8:25 pm
yeah, dont forget about this law: N^x / N^y = N^x-y
i got utterly defeated by the gmat.
Join the discussion