Diophantine equation second grade

[Lolyta]

Hello!
I am trying to find the general solution of this equation, could you help me?
$$\dfrac{x(x-1)}{{y(y-1)}} =1/2$$

Thank you so much!

 

[earboth]

Hello!
I am trying to find the general solution of this equation, could you help me?
$$\dfrac{x(x-1)}{{y(y-1)}} =1/2$$

Thank you so much!

Have a look here: http://www.freemathhelp.com/forum/threads/75176-Diophantine-equation-second-grade