Question

¿saben la respuesta? x^3+3x^2+5=​

Answer 1

$x^3 + 3x^2 + 5 = 0\\f ( x ) x^3 + 3x^2 = 3x^2 + 6x\\f ( x´) 3x^2 = 6x + 6x + 5 = 0\\\\\\12x + 5 = 0\\\\12x = - 5\\x = - 5 / 12\\x = - 0.41666$