if x²-4x=1, find values of x+1/x and x²-1/x² plz help fast it’s urgent​

if x²-4x=1, find values of x+1/x and x²-1/x² plz help fast it’s urgent​

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2 thoughts on “if x²-4x=1, find values of x+1/x and x²-1/x² plz help fast it’s urgent​”

  1. Step-by-step explanation:

    x2−3x+1=0∣(a±b)2=a2±2ab+b2

    (x−32)2−94+1=0∣+54

    (x−32)2=54∣√

    x−32=±5√2∣+32

    x=3±5√2

    x2=14±65√4

    1×2=414±65√=4×(14∓65√)16

    So

    x2−1×2=14±65√4−4×(14±65√)16=4×(14±65√)−4×(14∓65√)16=±48×5√16=±3×5–√

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  2. Answer:

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