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This module provides practice problems related to radicals.

For the following problems, I am not looking for big long ugly decimals—just simplified expressions. You should not have to use your calculator at all, except possibly to check your answers. Remember, you can always check your answer by squaring back!

If -x n has a real answer, what can you say about n ?

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16 x 2

  • A

    Simplify as much as possible (just like all the other problems)
  • B

    Check your answer with x 3 . Did it work?
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Say, remember inverse functions?

f ( x ) = x 2

  • A

    Find the inverse of the function.
  • B

    Test it.
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f ( x ) = x 3

  • A

    Find the inverse of the function.
  • B

    Test it.
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f ( x ) = 3 x

  • A

    Find the inverse of the function.
  • B

    Test it.
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Source:  OpenStax, Advanced algebra ii: activities and homework. OpenStax CNX. Sep 15, 2009 Download for free at http://cnx.org/content/col10686/1.5
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