Ответ: Log_3 x = Log_3 18 -(1/4)Log_3 16 +2Log_3 5 ;* * * Log_3 x = Log_3 (18*5²/(16^1/4)) ⇒x =225 * * * ;По шагам:Log_3 x = Log_3 18 -(1/4)Log_3 2⁴ +Log_3 5² ;Log_3 x = Log_3 18 -(1/4)*4*Log_3 2 +Log_3 5² ;Log_3 x = Log_3 18 — Log_3 2 +Log_3 25 ;Log_3 x = Log_3 (18*25/2) ;Log_3 x = Log_3 (9*25) ;x = 9*25 ;x =225.