Question

resolva as questões exponenciais
A)3*+2=9

Answer 1

$\sf\:3 {}^{x} + 2 = 9 \\ \\ \sf\:3 {}^{x} = 9 - 2 \\ \\ \sf\:3 {}^{x} = 7 \\ \\ \sf\: log_{ 3}\Big(3 {}^{x} \Big) = log_{3}(7) \\ \\ \sf\:x = log_{3}(7)$

Att: Nerd1990