$=\frac{(-\sqrt{2})^{2}-\sqrt{2}(-\sqrt{2})+\sqrt{3}(-\sqrt{2})-\sqrt{6}}{-\sqrt{2}-\sqrt{2}}$
Simplify $\frac{(-\sqrt{2})^{2}-\sqrt{2}(-\sqrt{2})+\sqrt{3}(-\sqrt{2})-\sqrt{6}}{-\sqrt{2}-\sqrt{2}}:{\quad}\frac{\sqrt{6}-2}{\sqrt{2}}$$=\frac{\sqrt{6}-2}{\sqrt{2}}$