• 把下列各式化为最简二次根式(1)√216(2)√2112(3)√132(4)-6√23(5)√132-112(6)√62+42.试题及答案-解答题-云返教育

    • 试题详情

      把下列各式化为最简二次根式
      (1)
      216

      (2)
      2
      1
      12

      (3)
      1
      32

      (4)-6
      2
      3

      (5)
      132-112

      (6)
      62+42

      试题解答


      见解析
      解:(1)
      216
      =6
      6

      (2)
      2
      1
      12
      =
      25
      12
      =
      5
      6
      3

      (3)
      1
      32
      =
      1
      8
      2

      (4)-6
      2
      3
      =-6×
      6
      3
      =-2
      6

      (5)
      132-112
      =
      48
      =4
      3

      (6)
      62+42
      =
      52
      =2
      13
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