Найти X (log3 (x))^2 +5 = 2log3 (x)^3
(log₃ (x))^2 +5 = 2log₃ (x)^3 (log₃ (x))^2 +5 = 6log₃ x log₃x = t t² - 6t + 5 = 0 По т. Виета t₁ = 1 и t₂ = 5 a) t = 1 б) t = 5 log₃x = 1 log₃x = 5 x = 3 x = 3⁵ = 243