<|system|>
Simplify: $\sqrt{50} + \sqrt{18}$ . Express your answer in simplest radical form.</s>.
<|user|>
Can you answer based on context?
<|assistant|>
Prime factorizing 50, we find that $\sqrt{50}=\sqrt{2\cdot5^2}=\sqrt{2}\sqrt{5^2}=5\sqrt{2}$.  Similarly, $\sqrt{18}=\sqrt{2}\sqrt{9}=3\sqrt{2}$.  Five square roots of 2 plus 3 square roots of 2 is $8\sqrt{2}$.