Answer
$$10\cdot\frac{\sqrt{5}}{2}=5\sqrt{5}$$
Explanation
| $$ \begin{aligned}10 \cdot \frac{\sqrt{5}}{2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{10\sqrt{5}}{2} \xlongequal{ } \\[1 em] & \xlongequal{ }5\sqrt{5}\end{aligned} $$ | |
| ① | $$ \color{blue}{ 10 } \cdot \sqrt{5} = 10 \sqrt{5} $$$$ \color{blue}{ 1 } \cdot 2 = 2 $$ |
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Simplify Radical Expression