Sqrt 8 2 sqrt 7

Sqrt 8 2 sqrt 7. Sqrt. sqrt(i). sqrt2+sqrt2. sqrt(2).
Sqrt 8 2 sqrt 7. Sqrt((2sqrt(3)-5)^2)+2sqrt(3). sqrt(2). \sqrt{x+3}-\sqrt{7-x}=2. 7^2sqrt5-2*7^2-3sqrt5:7^-sqrt5-1.
Sqrt 8 2 sqrt 7. Sqrt((7^4+8^4+15^4)/2).
Sqrt 8 2 sqrt 7
Sqrt 8 2 sqrt 7. Sqrt 8 2 sqrt 7