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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: 3/3+ căn 6 – căn 10-4 căn 6 + căn 24

Tháng Tám 6, 2022 Toán học 1 Comment 0 views

Toán Lớp 9: 3/3+ căn 6 – căn 10-4 căn 6 + căn 24

Comments ( 1 )

  1. daithanh
    daithanh
    6 Tháng Tám, 2022 at 10:51 sáng
    Reply
    3/(3+\sqrt{6})-\sqrt{10-4\sqrt{6}}+\sqrt{24}
    =(3(3-\sqrt{6}))/((3+\sqrt{6})(3-\sqrt{6}))-\sqrt{6-4\sqrt{6}+4}+\sqrt{4.6}
    =(3(3-\sqrt{6}))/(3)-\sqrt{(\sqrt{6}-2)^2}+2\sqrt{6}
    =3-\sqrt{6}-|\sqrt{6}-2|+2\sqrt{6}
    =3+\sqrt{6}-\sqrt{6}+2
    =5
     

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222-9+11+12:2*14+14 = ? ( )

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