If $$x = 3 + \sqrt 8 ,$$then $${x^2} + \frac{1}{{{x^2}}}$$is equal to

1.	If $$x = 3 + \sqrt 8 ,$$then $${x^2} + \frac{1}{{{x^2}}}$$is equal to = ?
A.	0
B.	4
C.	6
D.	8
Answer» C. 6

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