Помогите,логарифмы lg(2x-5)^2=0

Question

Помогите,логарифмы
lg(2x-5)^2=0

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Answer 1

Решение
lg(2x-5)^2 = 0
(2x-5)^2 = 10^0
4x^2 - 20x + 25 = 1
4x^2 -20x + 24 = 0   / 4
x^2 - 5x + 6 = 0
x1 = - 1
x2 = 6