Cześć!
Zadanie 1
[tex]0,4\sqrt3=\sqrt{0,4^2\cdot3}=\sqrt{0,16\cdot3}=\sqrt{0,48}\\\\\frac{1}{2}\sqrt8=\sqrt{(\frac{1}{2})^2\cdot8}=\sqrt{\frac{1}{4}\cdot8}=\sqrt2\\\\\frac{1}{3}\sqrt{18}=\sqrt{(\frac{1}{3})^2\cdot18}=\sqrt{\frac{1}{9}\cdot18}=\sqrt2[/tex]
Zadanie 2
[tex]\sqrt{216}=\sqrt{36\cdot6}=\sqrt{6^2\cdot6}=6\sqrt6\\\\\sqrt{245}=\sqrt{49\cdot5}=\sqrt{7^2\cdot5}=7\sqrt5\\\\\sqrt{800}=\sqrt{400\cdot2}=\sqrt{20^2\cdot2}=20\sqrt2[/tex]
