Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

Exponents GMAT Prep Question

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Jan 15, 2009 10:25 am
by Nole23 » Sat Jun 06, 2009 12:05 pm
Any suggestions on how to tackle this question would be great.

2^(4-1)^2
2^(3-2)

A. 2^8
B. 2^7
C. 2^6
D. 2^5
E. 2^4

I got 2^5

OA. A
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 101
Joined: Tue Apr 07, 2009 12:30 am
Thanked: 2 times
GMAT Score:750

Re: Exponents GMAT Prep Question

by Svedankae » Sat Jun 06, 2009 12:23 pm
Nole23 wrote:Any suggestions on how to tackle this question would be great.

2^(4-1)^2
2^(3-2)

A. 2^8
B. 2^7
C. 2^6
D. 2^5
E. 2^4

I got 2^5

OA. A
2^(4-1)^2
2^(3-2)

=

2^(3)^2
2^(1)

=

2^(9)
2

=

2^8
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 472
Joined: Sun Mar 29, 2009 6:54 pm
Thanked: 56 times

Re: Exponents GMAT Prep Question

by ssmiles08 » Sat Jun 06, 2009 2:30 pm
Svedankae wrote:
2^(4-1)^2
2^(3-2)

=

2^(3)^2
2^(1)

=

2^(9)
2

=

2^8
how did you get 2^9?

I thought 2^3^2 = 2^6

Do you get 9 with the brackets around the 3?
Top
Join the discussion
Newbie | Next Rank: 10 Posts
Posts: 8
Joined: Sun Feb 01, 2009 8:19 am

by cyclonus » Sat Jun 06, 2009 5:36 pm
You have to pay attention to order of operations.

2^3^2 is the same as 2^(3^2).
You multiplied 3*2 instead of 3 squared which is 9.
Top
Join the discussion
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members
Thanked: 331 times

by cramya » Sat Jun 06, 2009 6:51 pm
Takeaways:

1) a^b^c with no parentheses do b^c first and then raise a to that

2) (a^b)^c = a^ (b*c)


Hope this helps in addition to everyhting said above by cyclonus.

Regards,
CR
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 472
Joined: Sun Mar 29, 2009 6:54 pm
Thanked: 56 times

by ssmiles08 » Sat Jun 06, 2009 6:55 pm
cramya wrote:Takeaways:

1) a^b^c with no parentheses do b^c first and then raise a to that

Thanks guys! I definitely did not know that! always learn something new when you are studying for the GMAT! :)
Top
Join the discussion