Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 25 Jun 2016, 07:30

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

What is the Value of X^2 - y^2 I x + y = 2x II x + y = 0

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Director
Joined: 07 Jun 2004
Posts: 613
Location: PA
Followers: 3

Kudos [?]: 542 [0], given: 22

What is the Value of X^2 - y^2 I x + y = 2x II x + y = 0 [#permalink]

Show Tags

06 Aug 2005, 08:42
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the Value of X^2 - y^2

I x + y = 2x

II x + y = 0

thanks
Current Student
Joined: 28 Dec 2004
Posts: 3385
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 14

Kudos [?]: 236 [0], given: 2

Show Tags

06 Aug 2005, 11:49
D it is...

X^2 - Y^2 can be written as (x+y)(x-y)

1) x+y=2x

then y=x,

plug in Y=x

(x+x)(x-x)=0

sufficient

2) x+y=0

plug it in...stem becomes 0....

sufficient...
[#permalink] 06 Aug 2005, 11:49
Display posts from previous: Sort by

What is the Value of X^2 - y^2 I x + y = 2x II x + y = 0

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.