Question

questão 5 LOGARITMO
resolver as questões (a) (b) (c) (d) ... ME AJUDEM MUITO DIFICIL​

Answer 1

$a) log_{x}(8) = 3 \\ {x}^{3} = 8 \\ {x}^{} = \sqrt[3]{8} \\ x = 2 \\ \\ b) log_{x}( \frac{1}{16} ) = 2 \\ {x}^{2} = \frac{1}{16} \\ x = \sqrt{ \frac{1}{16} } \\ x = \frac{1}{4} \\ \\ c) log_{2}(x) = 5 \\ {2}^{5} = x \\ x = 32 \\ \\ d) log_{9}(27) = x \\ {9}^{x} = 27 \\ {( {3}^{2}) }^{x} = {3}^{3} \\ {3}^{2x} = {3}^{3} \\ 2x = 3 \\ x = \frac{3}{2}$