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

It is currently 31 Jul 2015, 22:10
GMAT Club Tests

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

How many real solutions are there? x^23|x|+2=0

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1607
Followers: 6

Kudos [?]: 93 [0], given: 0

How many real solutions are there? x^23|x|+2=0 [#permalink] New post 30 May 2003, 03:26
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many real solutions are there?
x^2–3|x|+2=0 :wow
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1607
Followers: 6

Kudos [?]: 93 [0], given: 0

 [#permalink] New post 30 May 2003, 04:36
4 seems OK :drinking
Intern
Intern
avatar
Joined: 25 May 2003
Posts: 17
Location: Thailand
Followers: 0

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

 [#permalink] New post 01 Jun 2003, 19:38
How many real solutions are there?
x^2тАУ3|x|+2=0


In my view, the answer is 2 and -2. I know that 1 and - 1 too Try to put these numbers in the problem. Why others said 4 ? but don't know how to solve.
Expert Post
Founder
Founder
User avatar
Affiliations: AS - Gold, HH-Diamond
Joined: 04 Dec 2002
Posts: 12855
Location: United States (WA)
GMAT 1: 750 Q49 V42
GPA: 3.5
Followers: 2791

Kudos [?]: 14051 [0], given: 3876

GMAT ToolKit User Premium Member CAT Tests
 [#permalink] New post 01 Jun 2003, 20:02
Expert's post
somratp wrote:
How many real solutions are there?
x^2тАУ3|x|+2=0


In my view, the answer is 2 and -2. I know that 1 and - 1 too Try to put these numbers in the problem. Why others said 4 ? but don't know how to solve.



They meant 4 roots: 2, -2, 1, and -1
Senior Manager
Senior Manager
avatar
Joined: 02 Mar 2004
Posts: 328
Location: There
Followers: 1

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

 [#permalink] New post 24 Mar 2004, 23:06
somratp wrote:
How many real solutions are there?
x^2тАУ3|x|+2=0


In my view, the answer is 2 and -2. I know that 1 and - 1 too Try to put these numbers in the problem. Why others said 4 ? but don't know how to solve.


Case 1: x >= 0, x^2 - 3x+2 = (x-2)(x-1) = 0, {1, 2}
Case 2: x < 0, x^2+3x+2 = (x+2)(x+1) = 0, {-1, -2}
  [#permalink] 24 Mar 2004, 23:06
Display posts from previous: Sort by

How many real solutions are there? x^23|x|+2=0

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.