
Diophantine Challenge
Problem
Given that x, y, and b are positive integers, prove that the Diophantine equation, x2 + (b
x)y =
1 in x and y, has at least four solutions for all values of b.
Problem ID: 227 (04 Jun 2005) Difficulty: 4 Star

Given that x, y, and b are positive integers, prove that the Diophantine equation, x2 + (b
x)y =
1 in x and y, has at least four solutions for all values of b.