If x^(4) + (1)/( x^(4)) = 98 and x gt ...

If ` x^(4) + (1)/( x^(4)) = 98 and x gt 1 ` then what is the value of `( x - (1)/( x))` ?

A

2

B

`2 sqrt2`

C

`sqrt5`

D

`sqrt3`

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The correct Answer is:

B

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