2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/72909Let K = Q(t1,..,tk) and a,b,c in K. We give a simple algorithm to find, if it exists, X,Y,Z in K, not all zero, for which aX^2 + bY^2 + cZ^2 = 0.8 pagesNumber Theory11D09; 68W30text