Question
Answer
$$(2\sqrt{15})^2=60$$
Explanation
| $$ \begin{aligned}(2\sqrt{15})^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}60\end{aligned} $$ | |
| ① | $$ (2\sqrt{15})^2 =
2^{ 2 } \cdot \sqrt{15} ^ { 2 } =
2^{ 2 } \sqrt{15} ^2 =
2^{ 2 } \lvert 15 \rvert =
60 $$ |
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