Question

Efectuati: (3-radical 7) la puterea a 2 (3radical 2 +2 radical 5) la puterea 2

Answer 1

$e) \\ (3-\sqrt{7})^{2}=0,125492... \\ d) \\ (3\sqrt{2}+2\sqrt{5})^{2}=(\sqrt{18}+\sqrt{20})^{2}=75,947..$