Question

Помогите пожалуйста

Answer 1

$log_{2}(7) + log_{2}(2) + log_{2}(3) = log_{2}(x) \ log_{2}( 7times 2 times 3) = log_{2}(x) \ log_{2}(x ) = log_{2}(42) \ x = 42$
$log_{3}(18) - log_{3}(2) - log_{3}(2) = log_{3}(x) \ log_{3}( frac{18}{2 times 2} ) = log_{3}(x) \ x = frac{9}{2} = 4.5$
$log_{13}(x) = 2 log_{13}(2) \ log_{13}(x) = log_{13}( {2}^{2} ) \ x = 4$