问题标题:
根号48-根号27/2(3-根号3)(1+1/根号3)
问题描述:

根号48-根号27/2(3-根号3)(1+1/根号3)

陆新泉回答:
  √48-√27/2(3-√3)(1+1/√3)   =4√3-3/2√3×(3-√3)(√3+1)/√3   =4√3-3/2×(3-√3)(√3+1)   =4√3-√3/2×(3-√3)(3+√3)   =4√3-√3/2×(9-3)   =4√3-3√3   =√3
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