If x² + 1 by x² = 27 find the value of x-1 by x

Question

If x² + 1 by x² = 27 find the value of x-1 by x

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Faith 2 months 2021-11-10T18:34:45+00:00 1 Answer 0 views 0

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    2021-11-10T18:36:13+00:00

    Answer:

    by using the formula of (a+b)2

    Step-by-step explanation:

    X²+1/x² = 27

    (x)²+(1/x)²+2(x)(1/x) = 29

    using formula ,

    a²+b²+2ab = (a+b)²

    (x+1/x)² = 29

    x+1/x = √29

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