I am trying to find solutions for this diophantine equation
$$x^2+y^2+x^2y^2=4z^2$$
I am looking for advice on a procedure to find all positive integer solutions for this equations.
I am trying to find solutions for this diophantine equation
$$x^2+y^2+x^2y^2=4z^2$$
I am looking for advice on a procedure to find all positive integer solutions for this equations.