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Answer
$$-3\sqrt{2}-2\sqrt{2}=-5\sqrt{2}$$
Explanation
$$ \begin{aligned}-3\sqrt{2}-2\sqrt{2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-5\sqrt{2}\end{aligned} $$
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