Question
Answer
$$5\sqrt{2}\cdot7\sqrt{12}=70\sqrt{6}$$
Explanation
| $$ \begin{aligned}5\sqrt{2}\cdot7\sqrt{12}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}70\sqrt{6}\end{aligned} $$ | |
| ① | $$ 35 \sqrt{24} =
35 \sqrt{ 2 ^2 \cdot 6 } =
35 \sqrt{ 2 ^2 } \, \sqrt{ 6 } =
35 \cdot 2 \sqrt{ 6 } =
70 \sqrt{ 6 } $$ |
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