Question

Tính : căn (5+2 căn)^2 + căn (5-2 căn 6)^2

Answer 1

đề thiếu r bn ơi

Answer 2

\(\sqrt{\left(5+2\sqrt{6}\right)^2}+\sqrt{\left(5-2\sqrt{6}\right)^2}\)

\(=\left|5+2\sqrt{6}\right|+|5-2\sqrt{6}|\)

\(=5+2\sqrt{6}+5-2\sqrt{6}\)

\(=10\)