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

Toán Lớp 6: Tìm `x` `3^x` – 24 = `3` `.` `2^3`

Toán Lớp 6: Tìm x
3^x – 24 = 3 . 2^3

Comments ( 2 )

  1. 3^x – 24 = 3 . 2^3
    => 3^x – 24 = 3 . 8
    => 3^x – 24 = 24
    => 3^x = 24 + 24
    => 3^x = 48
    => x ∈ { ∅ }
     

  2. 3^x = 3. 2^3
    =>3^x – 24  =3.8
    =>3^x -24 =24
    =>3^x=24+24
    3^x=48
    ??????? đề sai hử
     

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

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