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-   -   Factoring quartic functions (https://www.askmehelpdesk.com/showthread.php?t=402611)

  • Oct 4, 2009, 03:13 PM
    kmekme100
    factoring quartic functions
    factor fully

    f(x) = x^4 - 5x^2 + 4
  • Oct 4, 2009, 05:05 PM
    galactus
    Let

    Then, we get

    Now, factor the quadratic and resub.



    Since , resub:



    Note the difference of two squares in both.


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