Question
Answer
$$-5\sqrt{16}\cdot9\sqrt{8}=-360\sqrt{2}$$
Explanation
| $$ \begin{aligned}-5\sqrt{16}\cdot9\sqrt{8}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-360\sqrt{2}\end{aligned} $$ | |
| ① | $$ - 45 \sqrt{128} =
-45 \sqrt{ 8 ^2 \cdot 2 } =
-45 \sqrt{ 8 ^2 } \, \sqrt{ 2 } =
-45 \cdot 8 \sqrt{ 2 } =
-360 \sqrt{ 2 } $$ |
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