Question
Answer
$$\dfrac{2\sqrt{5}\cdot2\sqrt{5}}{1}=20$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}\frac{2\sqrt{5}\cdot2\sqrt{5}}{1}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4\sqrt{25} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4\cdot5 \xlongequal{ } \\[1 em] & \xlongequal{ }20\end{aligned} $$ | |
| ① | Remove 1 from denominator. |
| ② | The square root of $ 25 $ is $ 5 $. |
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