Question

log2log3x^2=2 Помогите

Answer 1

$log_{2}log_{3}x^2=2\\ log_{2}log_{3}x^2=log_{2}4\\ log_{3}x^2=4\\ log_{3}x^2=log_{3}81\\ x^2=81\\ x=9$

Учитывая ОДЗ х>0