If x is a positive real number such that x8+(1x)8=47x^8 + \left(\frac{1}{x}\right)^8 = 47x8+(x1)8=47, then the value of x9+(1x)9x^9 + \left(\frac{1}{x}\right)^9x9+(x1)9 is
40540\sqrt{5}405
30530\sqrt{5}305
36536\sqrt{5}365
34534\sqrt{5}345
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