IMO Shortlist 1966 problem 40
Dodao/la:
arhiva2. travnja 2012. For a positive real number

, find all real solutions to the equation
%V0
For a positive real number $p$, find all real solutions to the equation
$$\sqrt{x^2 + 2px - p^2} -\sqrt{x^2 - 2px - p^2} =1.$$
Izvor: Međunarodna matematička olimpijada, shortlist 1966