Найдите нули функции y=x^3-x^2-4x+4
X^3 - x^2 - 4x + 4 = 0 x^2 (x - 1) - 4(x - 1) = 0 (x - 1 )(x^2 - 4) = 0 1) x - 1 = 0 x = 1 2) x^2 - 4 = 0 x^2 = 4 x = ± √4 x = ± 2 Ответ: - 2; 1; 2