Решите уравнение
Log²₂(x) + log₂(2) - log₂(x) - 3 = 0 log²₂(x) + 1 - log₂(x) - 3 = 0 log²₂(x) - log₂(x) - 2 = 0 log₂(x) = t t² - t - 2 = 0 D = 1 + 8 = 9 t = 2 или t = - 1 log₂(x) = 2 log₂(x) = - 1 x = 4 x = 1/2