# How do you simplify #(x^2-y^2)/(x-y)?

${x}^{2} - {y}^{2} = \left(x + y\right) \left(x - y\right)$
$\frac{{x}^{2} - {y}^{2}}{x - y} = \frac{\left(x + y\right) \left(x - y\right)}{x - y} = x + y$