根号下面(5+2√6)等于几
问题描述：
根号下面(5+2√6)等于几
答
√(5+2√6)
=√(3+2√6+2)
=√[(√3)^2+2√2√3+(√2)^2]
=√(√3+√2)^2
=√3+√2