It is currently 12 Dec 2017, 01:38

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
Director
Joined: 20 Feb 2008
Posts: 797

Kudos [?]: 147 [0], given: 9

Location: Texas
Schools: Kellogg Class of 2011
Anyone know how to do this [#permalink]

Show Tags

10 May 2008, 17:36
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Anyone know how to do this?
Attachments

GMAT Prep #7.GIF [ 8.85 KiB | Viewed 828 times ]

Last edited by jb32 on 10 May 2008, 19:04, edited 2 times in total.

Kudos [?]: 147 [0], given: 9

Director
Joined: 23 Sep 2007
Posts: 782

Kudos [?]: 254 [0], given: 0

Show Tags

10 May 2008, 18:21
C

you can just upload the picture instead of putting it in a word document.

Kudos [?]: 254 [0], given: 0

Director
Joined: 23 Sep 2007
Posts: 782

Kudos [?]: 254 [0], given: 0

Show Tags

10 May 2008, 20:25
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

Kudos [?]: 254 [0], given: 0

Senior Manager
Joined: 07 Jan 2008
Posts: 398

Kudos [?]: 311 [0], given: 0

Show Tags

10 May 2008, 22:21
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.

Kudos [?]: 311 [0], given: 0

Re: GMAT Prep Exponents   [#permalink] 10 May 2008, 22:21
Display posts from previous: Sort by

Anyone know how to do this

Moderator: chetan2u

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne 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®.