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

Toán Lớp 6: tìm x b) 3x[8mũ2 – 2 . (2 mũ5 – 1)] = 2 022

Home/ Toán Lớp 6: tìm x b) 3x[8mũ2 – 2 . (2 mũ5 – 1)] = 2 022

Toán Lớp 6: tìm x b) 3x[8mũ2 – 2 . (2 mũ5 – 1)] = 2 022

Tháng Chín 25, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: tìm x
b) 3x[8mũ2 – 2 . (2 mũ5 – 1)] = 2 022

Comments ( 2 )

  1. tongtung
    tongtung
    25 Tháng Chín, 2022 at 12:09 chiều
    Reply
    b ) 3x[8^2 – 2 . ( 2^5 – 1)] = 2022
    3x[64 – 2 . ( 32 – 1) = 2022
    3x[64 – 2 . 31] = 2022
    3x[64 – 62] = 2022
    3x . 2 = 2022
    3x = 2022 : 2
    3x = 1011
      x = 1011 : 3
      x = 337
    Vậy x = 337
    #dtkc

  2. lanminhngoc
    lanminhngoc
    25 Tháng Chín, 2022 at 12:09 chiều
    Reply
    b,
    3x . [8^{2} – 2 . (2^{5} – 1)] = 2022
    $\Leftrightarrow$ 3x . [64 – 2 . (32 – 1)] = 2022
    $\Leftrightarrow$ 3x . [64 – 2 . 31] = 2022
    $\Leftrightarrow$ 3x . [64 – 62] = 2022
    $\Leftrightarrow$ 3x . 2 = 2022
    $\Leftrightarrow$ 3x = 2022 : 2
    $\Leftrightarrow$ 3x = 1011
    $\Leftrightarrow$ x = 1011 : 3
    $\Leftrightarrow$ x = 337
    $\text{Vậy}$ x = 337
     

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

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