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 #1
avatar+118723 
+8

This site will help but I will go over some of the basics here as well.

http://www.mathsisfun.com/algebra/exponent-fractional.html

 

$$\sqrt6=\sqrt[2]6\qquad \mbox{The 2 is not usually added. It is just understood to be there}\\\\
\sqrt[2]{36}=\sqrt{36}=6\qquad \mbox{because 6 x 6=36}\\\\
Now\;\; \sqrt{36}\;\;\mbox{can also be written as }36^{1/2}\\\\
likewise\;\;\sqrt[3]64=64^{1/3}=4\qquad\mbox{ because 4 x 4 x 4 = 64}$$

etc.

Go to that website and have a look  and then come back if you have more questions.  

Jul 12, 2014
 #3
avatar+118723 
+5
Jul 12, 2014
 #5
avatar+839 
+3
Jul 12, 2014

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