Show that the diophantine equation x^2 - y^2= n is solvable in integers iff n is odd or 4 divides n.(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Prove property of diophantine equation

**Physics Forums | Science Articles, Homework Help, Discussion**