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Exponents

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Source: — Problem Solving |
Senior | Next Rank: 100 Posts
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by arzanr » Tue Feb 23, 2010 4:50 pm
Ans is d. 35

(2)[(10)^35] = (2).((2)^35).((5)^35) = (2^36)(5^35)

On the other side you have 5^m and 4^18

4^18 = ((2)^2)^18 = 2^36

2^36 cancels out on either side and you're left with 5^m = 5^35
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by KingTmo » Wed Feb 24, 2010 7:09 pm
What is a good rule of thumb to use when simplifying exponets and radicals? Are there any resources that offer basic tutorials?
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by arzanr » Fri Feb 26, 2010 9:49 am
KingTmo wrote:What is a good rule of thumb to use when simplifying exponets and radicals? Are there any resources that offer basic tutorials?
Any GMAT or GRE book will cover the basic rules of exponents. Also there are many sources on the web. A simple search on google for "exponents" should be a good starting point.

E.g. the first search result leads to this site:

https://www.purplemath.com/modules/exponent.htm
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