Problem Solving Exponents

This topic has expert replies
Source: — Problem Solving |

Legendary Member
Posts: 581
Joined: Sun Apr 03, 2011 7:53 am
Thanked: 52 times
Followed by:5 members

by killer1387 » Sat Apr 21, 2012 7:24 pm
mgaffney09 wrote:How do you simplify (72)^9/(9)^3?
(72)^9/(9)^3
= (9^9*8^9) / 9^3 = 9^(9-3)*8^9 = 9^6*8^9

User avatar
Legendary Member
Posts: 934
Joined: Tue Nov 09, 2010 5:16 am
Location: AAMCHI MUMBAI LOCAL
Thanked: 63 times
Followed by:14 members

by [email protected] » Sun Apr 22, 2012 5:00 am
What Killer wrote is also correct. There is also another way to give a solution for this question;


8^3 X (72)^6 is also the correct answer.

I feel the options should be given to get the actual feel of the question. When the best option is chosen then you feel that the question is solved. So what are the options by the way:
IT IS TIME TO BEAT THE GMAT

LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!

Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.