Esercizi svolti sulle equazioni logaritmiche

$$ \log_2 8x - 2 \log_2 x = 3 $$

$$ \log_3 (2x+7) = 2 + \log_3 x $$

$$ 2 \log_2 ( \sqrt{x}-2 ) + \log_2 x = 3 $$

$$ \log (2x+1) - \log (x-1) = \log(x+4) - \log 2 $$

$$ 1 +\ log_3 (x-2) + \log_3 (x+2) = \log_3 5 + \log_3 2 $$

$$ \log_2 (x^2+1) = 1 - \log_{ \frac{1}{2} } = x $$