If x^{4} + \frac{1}{x^{4}} = 98 and x > 1, then what is the value of x−\frac{1}{x}?

SSC CPO 2 July 2017 Shift 2 Paper

Question : 135 of 200

Marks: +1, -0

x^{4} + \;{1}/{x^{4}} = 98

and x > 1, then what is the value of

x−\;{1}/{x}?

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