If 5x+9+5x−9=3(2+2)\sqrt{5x+9} + \sqrt{5x - 9} = 3(2 + \sqrt{2})5x+9+5x−9=3(2+2), then 10x+9\sqrt{10x+9}10x+9 is equal to
3313\sqrt{31}331
454\sqrt{5}45
373\sqrt{7}37
272\sqrt{7}27
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