Question

[Nguyễn Thị Thùy Trang]

a,\(\sqrt{12}\)+ \(2\sqrt{27}\)+\(3\sqrt{75}\)-\(9\sqrt{48}\)

b, (\(2\sqrt{2}\) - \(\sqrt{3}\))\(^2\)

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(\sqrt{12}+2\sqrt{27}+3\sqrt{75}-9\sqrt{48}\)

\(=2\sqrt{3}+6\sqrt{3}+15\sqrt{3}-36\sqrt{3}\)

\(=-14\sqrt{3}\)

b: \(\left(2\sqrt{2}-\sqrt{3}\right)^2=11-4\sqrt{6}\)