Zadanie Oblicz:
7\sqrt{50}-8\sqrt8+3\sqrt{72}
źródło:
7\sqrt{50}-8\sqrt{8}+3\sqrt{72}=7\sqrt{25*2}-8\sqrt{4*2}+3\sqrt{36*2}=
7*5\sqrt{2}-8*2\sqrt{2}+3*6\sqrt{2}=35\sqrt{2}-16\sqrt{2}+18\sqrt{2}=37\sqrt{2}