Zad. 1.
[tex]a) \ \sqrt{1372} = \sqrt{196\cdot7} = \sqrt{196}\cdot\sqrt{7} = \sqrt{14^{2}}\cdot\sqrt{7} = 14\sqrt{7}\\\\b) \ \sqrt[3]{31250} = \sqrt[3]{15625\cdot2} = \sqrt[3]{15625}\cdot\sqrt[3]{2} = \sqrt[3]{25^{3}}\cdot\sqrt[3]{2} = 25\sqrt[3]{2}[/tex]
Zad. 2.
[tex]a) \ 14\sqrt{11} = \sqrt{14^{2}\cdot11} = \sqrt{196\cdot11} = \sqrt{2156}\\\\b) \ 9\sqrt[3]{2} = \sqrt[3]{9^{3}\cdot2} = \sqrt[3]{729\cdot2} = \sqrt[3]{1458}[/tex]