Question

решите уравнение
_______________

Answer 1

$ODZ:x textgreater 0\ \ log_{2} ^{2} x+ log_{2} 2-log_{2} x-3=0 \ \ log_{2} ^{2} x-log_{2} x-2=0 \ \ D=9 \ \ log_{2} x=2 \ \ x=4 \ \ log_{2} x=-1 \ \x= frac{1}{2}$

ответ {1/2;4}