Equação do 2º Grau Parte VIII: Resolução de Exercícios

Synopsis: In this lecture we present the resolution of two exercises involving the 2nd degree equations. To solve these exercises initially make a change of variables that allows us to reduce the initial problem to solve equations of the 2nd degree.
Source: Portal of Mathematics.
URL: http://matematica.obmep.org.br/index.php/modulo/ver?modulo=25#