Question - Simplifying a Radical Expression

\sqrt{8} + \sqrt{72} - \sqrt{32} - \sqrt{50} - \sqrt{2}

\sqrt{4 \cdot 2} + \sqrt{36 \cdot 2} - \sqrt{16 \cdot 2} - \sqrt{25 \cdot 2} - \sqrt{2}

2\sqrt{2} + 6\sqrt{2} - 4\sqrt{2} - 5\sqrt{2} - \sqrt{2}

(2 + 6 - 4 - 5 - 1)\sqrt{2}

-2\sqrt{2}