1/27 = 3^-3
9^x = 1/27
(3²)^x = 3^-3
3^2x = 3^-3 (cortando as bases...)
2x = -3
x = -3/2
3 elevado a 2x = 1/ 3 elevado a 3
3 elevado a 2x = 3 elevado a -3
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1/27 = 3^-3
9^x = 1/27
(3²)^x = 3^-3
3^2x = 3^-3 (cortando as bases...)
2x = -3
x = -3/2
3 elevado a 2x = 1/ 3 elevado a 3
3 elevado a 2x = 3 elevado a -3
2x = -3
x = -3/2