Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 23 May 2017, 07:08

### 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

# EXPONENTIALS Q

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 21 [0], given: 0

### Show Tags

06 Jan 2004, 19:40
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Any idea Pls include reasoning along with all answer posts.

The value of (2^3/4 + 2^1/2 + 2^1/4 + 1)(2^1/4 - 1)

a. 5
2. 7
3. -1
4. 1
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4289
Followers: 43

Kudos [?]: 468 [0], given: 0

### Show Tags

06 Jan 2004, 19:52
4)

= 2^(3/4+1/4) + [-1][2^3/4] + 2^(1/2+1/4) + [-1][2^1/2] + 2^(1/4+1/4) + [-1][2^1/4] + 2^1/4 - 1
= 2 - 2^3/4 + 2^3/4 - 2^1/2 + 2^1/2 - 2^1/4 + 2^1/4 -1
= 2 - 1
= 1
_________________

Best Regards,

Paul

Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 21 [0], given: 0

### Show Tags

06 Jan 2004, 19:54
[quote="Paul"]4)

= 2^(3/4+1/4) + [-1][2^3/4] + 2^(1/2+1/4) + [-1][2^1/2] + 2^(1/4+1/4) + [-1][2^1/4] + 2^1/4 - 1
= 2 - 2^3/4 + 2^3/4 - 2^1/2 + 2^1/2 - 2^1/4 + 2^1/4 -1
= 2 - 1
= 1[/quote]

How many minutes did that take you approx?
Is there a short cut?
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4289
Followers: 43

Kudos [?]: 468 [0], given: 0

### Show Tags

06 Jan 2004, 19:57
the time writing took me much longer than doing it. 30 sec to do it
_________________

Best Regards,

Paul

Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 21 [0], given: 0

### Show Tags

06 Jan 2004, 19:58
I'm thoroughly confused by this problem for some reason.
What exponential rules did your use?
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4289
Followers: 43

Kudos [?]: 468 [0], given: 0

### Show Tags

06 Jan 2004, 20:00
Just know the rule to multiply and add exponents. When same base is multiplied, in this case 2, you can just add up their exponents
_________________

Best Regards,

Paul

Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 21 [0], given: 0

### Show Tags

06 Jan 2004, 20:06
I made daft mistake.
Cheers
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

06 Jan 2004, 20:06
Display posts from previous: Sort by

# EXPONENTIALS Q

 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®.