Tap the blue circles to see an explanation.
$$ \begin{aligned}\frac{\sqrt{11}-5}{2\sqrt{3}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{\sqrt{11}-5}{2\sqrt{3}}\frac{\sqrt{3}}{\sqrt{3}} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}\frac{\sqrt{33}-5\sqrt{3}}{6}\end{aligned} $$ | |
① | Multiply the numerator and denominator by the conjugate of the denominator . $$\color{blue}{ \sqrt{3}} $$. |
② | Multiply in a numerator. $$ \color{blue}{ \left( \sqrt{11}-5\right) } \cdot \sqrt{3} = \color{blue}{ \sqrt{11}} \cdot \sqrt{3}\color{blue}{-5} \cdot \sqrt{3} = \\ = \sqrt{33}- 5 \sqrt{3} $$ Simplify denominator. $$ \color{blue}{ 2 \sqrt{3} } \cdot \sqrt{3} = 6 $$ |