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Zets October 7th, 2008 05:52 PM

Solving roots
 
I have a problem here.
http://img80.imageshack.us/img80/9990/rootio6.jpg
http://img80.imageshack.us/img80/rootio6.jpg/1/w345.png

This is a homework were I have to solve the roots and order them from greatest to least. But specifically, my problem is with the roots greater than square. I have no idea how to solve them. I know how to solve square roots, but roots greater than square seem to have different way of solving, and I can't solve them. No idea. Can anyone please help me with these?

Dave October 7th, 2008 07:44 PM

Re: Solving roots
 
The order will be the same if you raise the power of each by the same amount. Express as fractional exponents first.

I'll help with the first...




multiply by the LCD of the exponents. That would be 10.




Now it should be obvious.

skipjack October 8th, 2008 04:05 AM

Once you have converted a fifth root (for example) into an exponent of 1/5, just put 2^(1/5) (for example) into Google to find its value. Finally, order the resulting values.


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