Question

Найти х. 2lgx=lg33+lg5

Answer 1

$2lgx=lg33+lg5,; ; ; ; x>0\\lgx^2=lg(33cdot 5)\\x^2=165\\x_{1,2}=pm sqrt{165}\\Tak; kak; x>0,; to; x=sqrt{165}; -; otvet$