Resolução de algumas equações em números inteiros

Abstract

In this work we present some resolution techniques of equations whit intergers coefficients. Such equations although they' re very similar, presents quite different techniques from each other. we show wich are the interger solutions of the equations like x²+y² = z² e x-² + y-² = z-², as the are know as the Pythagorean equations. we also present brief history about the Fermat' s last teorem and we show that the equation x + y4 = z4 has no interger solution.