If x 4 + x -4 = 47, x > 0, then what is the value of x + \frac{1}{x}−2?

SSC CPO 9 Nov 2022 Shift 1 Paper

Question : 144 of 200

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If x⁴ + x^-4 = 47, x > 0, then what is the value of

x + \;{1}/{x}−2

?

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