Решите уравнение х^3= 3x^2+ 4x
X³ = 3x²+ 4x x³ - 3x² - 4x = 0 x( x² - 3x - 4 ) = 0 x = 0 x² - 3x - 4 = 0 D = 9 + 16 = 25 = 5² x1 = ( 3 + 5 ) : 2 = 4 x2 = ( 3 - 5 ) : 2 = - 1 Ответ ( - 1 ) ; 0 ; 4