If $$\left(x + \frac{1}{x}\right) = 6$$, and x > 1, find the value of $$\left(x^{2} - \frac{1}{x^{2}}\right)$$?

A

$$18\sqrt{2}$$

B

$$30\sqrt{2}$$

C

$$24\sqrt{2}$$

D

$$12\sqrt{10}$$