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Yara
a) 5^x = 125 b) 6^x = 1/36 c) 4^x = 32 d) 81^x = 1/27 e) 2 . 9^x = 54 f) 2^{3x+2} = 16 g) (25/9)^{x-1} = (3/5)^{4x-3} h) (1.2)^{x} = (6/5)^{2-x} i) (√27)^{x} = 1/81
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