Question
Answer
$$3\sqrt{27}^1=9\sqrt{3}$$
Explanation
| $$ \begin{aligned}3\sqrt{27}^1& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3(3\sqrt{3})^1 \xlongequal{ } \\[1 em] & \xlongequal{ }3\cdot3\sqrt{3} \xlongequal{ } \\[1 em] & \xlongequal{ }9\sqrt{3}\end{aligned} $$ | |
| ① | $$ \sqrt{27} =
\sqrt{ 3 ^2 \cdot 3 } =
\sqrt{ 3 ^2 } \, \sqrt{ 3 } =
3 \sqrt{ 3 }$$ |
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