As diferentes estratégias de resolução das equações algébricas até o terceiro grau

Abstract

The aim of this paper is to present explanations and solving strategies of algebraic equations of the first, second and third degrees, since the relative teaching on the resolutions of these equations has been restricted practically the presentation of solving formula and the relationships between its coefficients and its roots. In this way we try to demonstrate and even justify all forms presented to solve equations to the third degree by purely algebraic or geometric methods, but also exemplify all methods that were displayed in order to meet the expectations of readers, so the text was produced in simple language, accessible to teachers and students. In this context, it is expected that this work proposal stimulate the mathematics teachers of Basic Education to perform this differentiated approach to algebraic equations in question, since it is believed that with this approach occur positive reflexes in the teaching and learning of equations and of Mathematics.