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

 It is currently 05 May 2015, 17:10

### 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

# Anyone know how to do this

Author Message
TAGS:
Director
Joined: 20 Feb 2008
Posts: 797
Location: Texas
Schools: Kellogg Class of 2011
Followers: 6

Kudos [?]: 145 [0], given: 9

Anyone know how to do this [#permalink]  10 May 2008, 16:36
Anyone know how to do this?
Attachments

GMAT Prep #7.GIF [ 8.85 KiB | Viewed 611 times ]

Last edited by jb32 on 10 May 2008, 18:04, edited 2 times in total.
Director
Joined: 23 Sep 2007
Posts: 797
Followers: 5

Kudos [?]: 100 [0], given: 0

Re: Geometry DS [#permalink]  10 May 2008, 17:21
C

you can just upload the picture instead of putting it in a word document.
Director
Joined: 23 Sep 2007
Posts: 797
Followers: 5

Kudos [?]: 100 [0], given: 0

Re: GMAT Prep Exponents [#permalink]  10 May 2008, 19:25
the picture that you have on now is not the same as the picture in your original question.

(2^x) - (2^(x-2)) ---> ((2^x) * 1) - ((2^x) * (2^-2))

(2^x) (1 - (2^-2))

(2^x) (3/4) = 3(2^13)

2^x = 2^15

x = 15
Senior Manager
Joined: 07 Jan 2008
Posts: 418
Followers: 3

Kudos [?]: 91 [0], given: 0

Re: GMAT Prep Exponents [#permalink]  10 May 2008, 21:21
jbpayne wrote:
Anyone know how to do this?

Take 2^(x-2) out then you have the answer:

{2^(x-2)}*{x^2 - 1} = 3*2^13
So x-2=13, then x=15 is the correct answer.
Re: GMAT Prep Exponents   [#permalink] 10 May 2008, 21:21
Similar topics Replies Last post
Similar
Topics:
Anyone knows how to access MGMAT CAT exams? 0 05 Jun 2014, 19:50
I couldn't quite figure this one out. Anyone know how to do 1 03 Feb 2008, 09:24
Do anyone know how to simplify the radical expression 4 11 Dec 2006, 16:35
NYU- Anyone know how long it typically takes 6 22 Sep 2006, 17:03
Anyone know how to do this? Is xy > 0 1) x - y > -2 2) 3 03 Aug 2006, 16:58
Display posts from previous: Sort by