﹙√18-2√12﹚-﹙2√3-2﹚×﹙√6+√2﹚+√6÷0.5

问题描述:

﹙√18-2√12﹚-﹙2√3-2﹚×﹙√6+√2﹚+√6÷0.5

原式=3√2-4√3-6√2-2√6+2√6+2√2+2√6
=-√2-4√3+2√6