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

Toán Lớp 9: CBH: căn bậc hai giải bài toán sau: 3CBH3 (3 + 2CBH6 – CBH33)

Toán Lớp 9: CBH: căn bậc hai
giải bài toán sau:
3CBH3 (3 + 2CBH6 – CBH33)

Comments ( 2 )

  1. 3\sqrt{3}(3+2\sqrt{6}+\sqrt{33})
    =9\sqrt{3}+6\sqrt{18}+3\sqrt{99}
    =9\sqrt{3}+18\sqrt{2}+9\sqrt{11}
     

  2. 3\sqrt{3}(3+2\sqrt{6}-\sqrt{33})
    $\\$
    =3\sqrt{3}.3+3\sqrt{3}.2\sqrt{6}-3\sqrt{3}.\sqrt{33}
    $\\$
    =9\sqrt{3}+18\sqrt{2}-9\sqrt{11}
    #tnvt
     

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