Mathematics
OpenStudy (anonymous):

$$\Large \color{MidnightBlue}{\Rightarrow \sqrt{24} = \sqrt{2 * 2 * 2 * 3} }$$ $$\Large \color{MidnightBlue}{\Rightarrow \sqrt{24} = 2\sqrt{6} }$$ Think of x as root 6. What is 2x + 2x? 4x, so: $$\Large \color{MidnightBlue}{\Rightarrow 4\sqrt{6} }$$