Answer
$$-\sqrt{245}=-7\sqrt{5}$$
Explanation
| $$ \begin{aligned}-\sqrt{245}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-7\sqrt{5}\end{aligned} $$ | |
| ① | $$ - \sqrt{245} =
- \sqrt{ 7 ^2 \cdot 5 } =
- \sqrt{ 7 ^2 } \, \sqrt{ 5 } =
- 7 \sqrt{ 5 }$$ |
This page was created using
Simplify Radical Expression