Question

find x and y. a square x minus b square Y is equal to a square minus 2 b square​

Answer 1

See this is a linear equation in two variable.

Linear equations in two variable can only be solved if you have two equations.

With a single equation, there can be infinite solutions of the equation.

for example 1 solution of the above equation is :

$x = 1 + \ \frac{{b}^{2} }{ {a}^{2} } (y - 2)$