﹙√2-√3﹚²﹙5+2√6﹚等于

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﹙√2-√3﹚²﹙5+2√6﹚等于﹙√2-√3﹚²﹙5+2√6﹚等于﹙√2-√3﹚²﹙5+2√6﹚等于﹙√2-√3﹚²﹙5+2√6﹚=﹙5-2√6﹚×﹙5+2√

﹙√2-√3﹚²﹙5+2√6﹚等于
﹙√2-√3﹚²﹙5+2√6﹚等于

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

(5+2√6)(5+2√6)=25-24=1