﹙√2-√3﹚²﹙5+2√6﹚等于

问题描述:

﹙√2-√3﹚²﹙5+2√6﹚等于

﹙√2-√3﹚²﹙5+2√6﹚
=﹙5-2√6﹚×﹙5+2√6﹚
=25-24
=1