Question
Answer
$$2\cdot4\sqrt{147}=56\sqrt{3}$$
Explanation
| $$ \begin{aligned}2\cdot4\sqrt{147}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}56\sqrt{3}\end{aligned} $$ | |
| ① | $$ 8 \sqrt{147} =
8 \sqrt{ 7 ^2 \cdot 3 } =
8 \sqrt{ 7 ^2 } \, \sqrt{ 3 } =
8 \cdot 7 \sqrt{ 3 } =
56 \sqrt{ 3 } $$ |
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