MathDB
2012 preRMO p19, x^2+y^2-2xy-2x-4y-8=0 in ZxZ

Source:

June 17, 2019
number theoryDiophantine equation

Problem Statement

How many integer pairs (x,y)(x,y) satisfy x2+4y22xy2x4y8=0x^2+4y^2-2xy-2x-4y-8=0?