Помогите Логарифмическое уравнение log23 (2x-1) - log23 x = 0 2 log 5 x + 5 log 5 x + 2 = 0 log2 (3x - 6) = log2 (2x-3)
Log23 (2x-1) - log23 x = 0 {2x-1>0⇒x>0,5 {x>0 x∈(0,5;∞) log(23)(2x-1)=log(23)x 2x-1=x 2x-x=1 x=1 2 log 5 x + 5 log 5 x + 2 = 0 x>0 7log(5)x=-2 log(5)x=-2/7 log2 (3x - 6) = log2 (2x-3) {3x-6>0⇒x>2 {2x-3>0⇒x>1,5 x∈(2;∞) 3x-6=2x-3 3x-2x=6-3 x=3