Equação do 2º Grau Parte X: Relações entre Coeficientes e Raízes Aula 1

Synopsis: In this lecture we present some relations between the coefficients of an equation of the 2nd degree and his roots. More precisely, we determine the sum and the product of the roots of an equation of the 2nd degree according to their coefficients.
Source: Portal of Mathematics.
URL: http://matematica.obmep.org.br/index.php/modulo/ver?modulo=25#