Question

preciso só da A e B

Answer 1

$a) log_{4}(5) + log_{4}(9) \\ log_{4}(5 \times 9) \\ log_{4}(45) \\ \\ \\ b) \: 3 log_{8}(4) - log_{8}(16) \\ log_{8}( {4}^{3} ) - log_{8}( {4}^{2} ) \\ log_{8}( \frac{ {4}^{3} }{ {4}^{2} } ) \\ log_{8}(4)$