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Math Help - Inverse of a function

  1. #1
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    Inverse of a function

    Hello, i am looking to find the inverse of:

    f(x)=(x+6)^3

    The ^3 is throwing me off, and the book doesnt cover this type of example. Thanks alot for any help!
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  2. #2
    MHF Contributor red_dog's Avatar
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    f(x)=y\Rightarrow (x+6)^3=y\Rightarrow x+6=\sqrt[3]{y}\Rightarrow x=\sqrt[3]{y}-6\Rightarrow f^{-1}(x)=\sqrt[3]{x}-6
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  3. #3
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    Thank you very much!
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