explain the advantage of using rational exponents over the radical sign?

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- Jul 14th 2006, 09:03 AM #1

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- Jul 14th 2006, 09:04 AM #2

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- Jul 14th 2006, 09:30 AM #3

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Hello, bobby77!

Explain the advantage of using rational exponents over the radical sign?

Try this problem: .

Since , the two factors must have the same root.

We perform some gymnastics: . . . . did you follow that?

. . and the problem becomes: .

With rational exponents: .

Which way do*you*prefer?