\(\displaystyle 12=4\cdot 3{\small }\) болса,  онда

\(\displaystyle \sqrt{12}=\sqrt{4\cdot 3}=\sqrt{4}\cdot \sqrt{3}=2\sqrt{3}{\small .}\)

Онда

\(\displaystyle \color{green}{\sqrt{12}}-\sqrt{3}=\color{green}{2\sqrt{3}}-\sqrt{3}=(\color{green}{2}-1)\sqrt{3}=\sqrt{3}{\small .}\) 

Осылайша,

\(\displaystyle \sqrt{12}-\sqrt{3}=\sqrt{3}{\small .}\) 

Жауап: \(\displaystyle \sqrt{3}{\small .}\)