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Thread: calculate : x^4 +y^4 +z^4

  1. #1
    Super Member dhiab's Avatar
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    calculate : x^4 +y^4 +z^4

    hello :
    given :
    x+y+z = 6
    x+y+z = 8
    x^3 +y^3 +z^3 = 5
    calculate : x^4 +y^4 +z^4
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  2. #2
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    Re: calculate : x^4 +y^4 +z^4

    Hey dhiab.

    Can you show your working please? Any attempts you have?
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  3. #3
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    Re: calculate : x^4 +y^4 +z^4

    Answer: $x^4+y^4+z^4 = 0$. Note: there are no solutions over the reals.
    Last edited by SlipEternal; Jul 5th 2017 at 06:22 AM.
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