Question
Answer
$$-5\sqrt{10}(\sqrt{10}+2)=-50-10\sqrt{10}$$
Explanation
| $$ \begin{aligned}-5\sqrt{10}(\sqrt{10}+2)& \xlongequal{ }-(50+10\sqrt{10}) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-50-10\sqrt{10}\end{aligned} $$ | |
| ① | Remove the parenthesis by changing the sign of each term within them. |
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Simplify Radical Expression