Question

(1) Calcule log3 81 + log 2 32 - log3 27 :

Answer 1

$81=3.3.3.3=3^{4}$
$32=2.2.2.2.2=2^{5}$
$27=3.3.3=3^{3}$
$log_{3} 3^{4} + log_{2} 2^{5}- log_{3} 3^{3} =4 + 5 - 3=6$