Question
Answer
$$(8+10\sqrt{2})\cdot(-2-\sqrt{11})=-16-8\sqrt{11}-20\sqrt{2}-10\sqrt{22}$$
Explanation
| $$ \begin{aligned}(8+10\sqrt{2})\cdot(-2-\sqrt{11})& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-16-8\sqrt{11}-20\sqrt{2}-10\sqrt{22}\end{aligned} $$ | |
| ① | $$ \color{blue}{ \left( 8 + 10 \sqrt{2}\right) } \cdot \left( -2- \sqrt{11}\right) = \color{blue}{8} \cdot-2+\color{blue}{8} \cdot- \sqrt{11}+\color{blue}{ 10 \sqrt{2}} \cdot-2+\color{blue}{ 10 \sqrt{2}} \cdot- \sqrt{11} = \\ = -16- 8 \sqrt{11}- 20 \sqrt{2}- 10 \sqrt{22} $$ |
This page was created using
Simplify Radical Expression