1) log₀₎₂²(x/25) = log₀₎₂(x/25)*log₀₎₂(x/25) = = ( log₀₎₂x - log₀₎₂25)*( log₀₎₂x - log₀₎₂25)= (log₀₎₂x +2)* (log₀₎₂x +2)== (log₀₎₂x +2)²= log₀₎₂²x +4log₀₎₂x +42)log₀₎₂²(x/5) = log₀₎₂(x/5)*log₀₎₂(x/5) = (log₀₎₂x - log₀₎₂5)*(log₀₎₂x - log₀₎₂5)==(log₀₎₂x +1)*(log₀₎₂x +1)= (log₀₎₂x +1)² = log₀₎₂²x + 2log₀₎₂x +13) Само уравнение: log₀₎₂²x +4log₀₎₂x +4 +log₀₎₂²x + 2log₀₎₂x +1 = 1 (ОДЗ: x > 0)log₀₎₂x = tt² +4t +4 +t² +2t = 02t² +6t +4 = 0t² +3t +2 = 0По т. Виета а) t = -2, ⇒ log₀₎₂x = -2, x = 0,2⁻² = 25б) t = -1, ⇒ log₀₎₂x = -1, ⇒ x = 0,2⁻¹ = 5Ответ: 125