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(3²)^x-1 . (3^1/2)^x = (3^-4)^x + (3^-1)^2x
(3)^2x-2 . (3)^1/2 x = (3)^-4x + (3)^-2x
2x-2 + 1/2 x = -4x - 2x
2x - 1/2 x + 4x + 2x = 2
7x = 2
x = 2/7