Question

Thu gọn biểu thức:

√[4√3 +2√(7-4√3)]

Answer 1

\(=\sqrt{4\sqrt{3}+2\left(2-\sqrt{3}\right)}\)

\(=\sqrt{4\sqrt{3}+4-2\sqrt{3}}\)

\(=\sqrt{4+2\sqrt{3}}=\sqrt{3}+1\)