Question
Answer
$$8(2\sqrt{5}+5\sqrt{2})=16\sqrt{5}+40\sqrt{2}$$
Explanation
| $$ \begin{aligned}8(2\sqrt{5}+5\sqrt{2})& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}16\sqrt{5}+40\sqrt{2}\end{aligned} $$ | |
| ① | $$ \color{blue}{ 8 } \cdot \left( 2 \sqrt{5} + 5 \sqrt{2}\right) = \color{blue}{8} \cdot 2 \sqrt{5}+\color{blue}{8} \cdot 5 \sqrt{2} = \\ = 16 \sqrt{5} + 40 \sqrt{2} $$ |
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