Thursday 25 February 2010

Solving Radical Expression

For this posting, I want you to explain how to solve rational expression with negative or fractional exponent. If you don't have Word 2007 Equation Editor, just explain how to do it. I did the first one for you as an example. You can pick either the second or third.



1) I resolve the negative exponent x^-2 by flipping it to the top
2) Distribute the exponent 3/2 to all components
3) 3/2 means cube and then square root, so 16^(3/2)=64, 25^(3/2)=125
4) for the x term, power on power, so I multiply 3 with 3/2 to get 9/2
5) write x as a radical and simplify
Done!

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