Question
Answer
$$-\sqrt{11}\cdot(4-10\sqrt{5})=-4\sqrt{11}+10\sqrt{55}$$
Explanation
| $$ \begin{aligned}-\sqrt{11}\cdot(4-10\sqrt{5})& \xlongequal{ }-(4\sqrt{11}-10\sqrt{55}) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4\sqrt{11}+10\sqrt{55}\end{aligned} $$ | |
| ① | Remove the parenthesis by changing the sign of each term within them. |
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Simplify Radical Expression