If $$\left(x + \frac{1}{x}\right) = 3\sqrt{2}$$, and $$x > 1$$, what is the value of $$\left(x^8 - \frac{1}{x^8}\right)$$?

A

$$24364 \sqrt{7}$$

B

$$24384 \sqrt{11}$$

C

$$24384 \sqrt{7}$$

D

$$12192 \sqrt{7}$$