Log16 (x) +log4 (x) +log2 (x) =7
Log₁₆X + log₄X + log₂X = 7 ОДЗ: x>0 log₂X + 2log₂X + 4log₂X = 28 log₂X + log₂X² + log₂X⁴ = 28 log₂X⁷ = 28 x⁷ = 2²⁸ x = 2⁴ x= 16 Ответ: 16