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

Toán Lớp 6: (3^2021+24×3^2020):3^2019 12-{800:[537-(2^5+15,7)]}x1^2021 giúp mk vs :D

Home/ Toán Lớp 6: (3^2021+24×3^2020):3^2019 12-{800:[537-(2^5+15,7)]}x1^2021 giúp mk vs :D

Toán Lớp 6: (3^2021+24×3^2020):3^2019 12-{800:[537-(2^5+15,7)]}x1^2021 giúp mk vs :D

Tháng Mười Hai 27, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: (3^2021+24×3^2020):3^2019
12-{800:[537-(2^5+15,7)]}x1^2021
giúp mk vs 😀

Comments ( 2 )

  1. hauthanhyen98
    hauthanhyen98
    27 Tháng Mười Hai, 2022 at 12:18 chiều
    Reply
    (3^{2021} + 24 xx 3^{2020}) : 3^{2019}
    = (3^2021 + 3.8 . 3^{2020}) : 3^{2019}
    = (3^{2021} + 8.3^{2021}) : 3^{2019}
    = 3^{2021}.(1 + 8) : 3^{2019}
    = 3^{2} . 9
    = 81
    12-{800:[537-(2^{5}+15,7)]}xx 1^2021
    = 12 – {800 : [537 – 47,7]} xx 1
    =12 – {800 : 489,3} xx 1
    =12 – 1,63498875945 xx 1
    =>lỗi đề ạ!
     

  2. minhtuyethue
    minhtuyethue
    27 Tháng Mười Hai, 2022 at 12:17 chiều
    Reply
    ( 3^2021 + 24 * 3^2020 ) : 3^2019
    = [3^2020.( 3 + 24 )] : 3^2019
    = ( 3^2020. 27 ) : 3^2019
    = ( 3^2020 . 3^3 ) : 3^2019
    = 3^2023 : 3^2019 = 3^4 = 81
    12 – {800 : [537 – ( 2^5 + 15*7 )]} * 1^2021
    = 12 – { 800 : [ 537 – 137 ] * 1  
    = 12 – {800 : 400}*1
    = 12 – 2 * 1
    = 10  

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

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