Question

resolva as equações exponenciais ​

Answer 1

$\frac{2}{3}^{x} = \frac{225}{100} \\ \frac{2}{3}^{x} = \frac{15 ^{2} }{10 ^{2} } \\ \frac{2}{3}^{x} = \frac{3}{2}^{2} \\ \frac{2}{3} ^{x} = \frac{2}{3}^{ - 2} \\ x = - 2$