Вариант 11: 1) \(\frac{24(\sqrt5)^2}{15}\); 2) \(\sqrt{\frac1{81}}+\sqrt{\frac{49}{36}}\); 3) \((\sqrt{11}-\sqrt3)(\sqrt{11}+\sqrt3)\); 4) \((\sqrt5+\sqrt2)^2\); 5) \(0{,}2\sqrt{0{,}25}+\frac56\sqrt{144}\); 6) \(2\sqrt5+2\sqrt{125}-2\sqrt{20}\); 7) \(\sqrt{128}\cdot\sqrt2\); 8) \(\sqrt{3^4\cdot80}\).

Ответ: