Помогите решить уравнение,плес ^ - степень 81х^5 - x^3 = 0

81x^5 - x^3 = 0 x^3(81x^2 - 1) = 0 x^3(9x - 1)(9x + 1) = 0 x^3 = 0 x = 0 9x - 1 = 0 9x = 1 x = 1/9 9x + 1 = 0 9x = - 1 x = - 1/9 Ответ:x1 = 0, x2 = 1/9, x3 = - 1,9.