algabra equation ? : GMAT Quantitative Section
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 07 Dec 2016, 07:47

# Chicago-Booth

is Releasing R1 Admission Decisions | Keep Watch on App Tracker | Join Chat Room2 for Live Updates

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# algabra equation ?

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Intern
Joined: 02 Sep 2011
Posts: 10
Followers: 0

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

algabra equation ? [#permalink]

### Show Tags

07 Sep 2011, 02:13
hi guys
if x is a positive integer, is y^2(x^3-x+1)>75?

1)y>1
2)(x-1)^2=16

OA is C

but the equation (x-1)^2= 16 equal to x-1=4 ====> x=5
what about the negative sign? here does the equation x-1)^2=16 has 2 solutions or just one which is x-1=4 ====> x=5
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2021
Followers: 162

Kudos [?]: 1669 [0], given: 376

Re: algabra equation ? [#permalink]

### Show Tags

07 Sep 2011, 02:27
denver2018 wrote:
hi guys
if x is a positive integer, is y^2(x^3-x+1)>75?

1)y>1
2)(x-1)^2=16

OA is C

but the equation (x-1)^2= 16 equal to x-1=4 ====> x=5
what about the negative sign? here does the equation x-1)^2=16 has 2 solutions or just one which is x-1=4 ====> x=5

You have posted your question in a wrong forum. This is a PS question and should go to:
gmat-problem-solving-ps-140/

List of forums below. Please subscribe to each of these forums separately.

Please post PS questions in the PS sub-forum: gmat-problem-solving-ps-140/
Please post DS questions in the DS sub-forum: gmat-data-sufficiency-ds-141/

No posting of PS/DS questions is allowed in the main Math forum.

Critical Reasoning(CR): gmat-critical-reasoning-cr-139/
Reading Comprehension(RC): gmat-reading-comprehension-rc-137/
Sentence Correction(SC): gmat-sentence-correction-sc-138/
Analytical Writing And Assessment:
analytical-writing-assessment-awa-144/

Please DO NOT post any question in main Verbal forum:
verbal-gmat-questions-11/

Also, please hide anything and everything except the question in spoiler tag. e.g.

*************************************************
If x is a positive integer, is y^2(x^3-x+1)>75?

1)y>1
2)(x-1)^2=16

[Reveal] Spoiler: OA
OA is C

but the equation (x-1)^2= 16 equal to x-1=4 ====> x=5
what about the negative sign? here does the equation x-1)^2=16 has 2 solutions or just one which is x-1=4 ====> x=5

**************************************************

Please post this again in the appropriate forum.

Thread locked.
_________________
Re: algabra equation ?   [#permalink] 07 Sep 2011, 02:27
Similar topics Replies Last post
Similar
Topics:
3 equation 3 17 Apr 2013, 20:16
Equations. 2 19 Dec 2011, 18:43
equations 8 27 Mar 2011, 07:14
3 Equating coefficients in a quadratic equation 5 29 Oct 2010, 05:30
1 Solving equation 1 23 Apr 2010, 22:13
Display posts from previous: Sort by

# algabra equation ?

 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®.