hello : given : x+y+z = 6 x²+y²+z² = 8 x^3 +y^3 +z^3 = 5 calculate : x^4 +y^4 +z^4
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Hey dhiab. Can you show your working please? Any attempts you have?
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.