Question
Answer
$$\sqrt{3}\cdot(2-5\sqrt{10})=2\sqrt{3}-5\sqrt{30}$$
Explanation
| $$ \begin{aligned}\sqrt{3}\cdot(2-5\sqrt{10})& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2\sqrt{3}-5\sqrt{30}\end{aligned} $$ | |
| ① | $$ \color{blue}{ \sqrt{3} } \cdot \left( 2- 5 \sqrt{10}\right) = \color{blue}{ \sqrt{3}} \cdot2+\color{blue}{ \sqrt{3}} \cdot- 5 \sqrt{10} = \\ = 2 \sqrt{3}- 5 \sqrt{30} $$ |
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