Question
Answer
$$-\sqrt{175}=-5\sqrt{7}$$
Explanation
| $$ \begin{aligned}-\sqrt{175}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-5\sqrt{7}\end{aligned} $$ | |
| ① | $$ - \sqrt{175} =
- \sqrt{ 5 ^2 \cdot 7 } =
- \sqrt{ 5 ^2 } \, \sqrt{ 7 } =
- 5 \sqrt{ 7 }$$ |
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