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Given that x satisfies x^2 - 5x + 1 = 0, find the value of x^4 + 1/x^4.

 Feb 7, 2021
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Using Quadratic Formula    x = 5/2 ± sqrt(21) / 2

    

 doing the math results in   x^4 + 1/x^4 = 527    for either of the roots !

 Feb 7, 2021

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