Question

Resolver a questão c) log2(2×-4)=1

Answer 1

Resposta:

$log_{2}(2x - 4) = 1 \\ {2}^{1} = 2x - 4 \\ 2 = 2x - 4 \\ - 2x = - 4 - 2 \\ - 2x = - 6 \\ x = \frac{ - 6}{ - 2} \\ x = 3$