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

Toán Lớp 6: (125 mũ 2 nhân 5 mũ 4 – 175 mũ 5 chia cho 7 mũ 5) : 2020 mũ 2021

Toán Lớp 6: (125 mũ 2 nhân 5 mũ 4 – 175 mũ 5 chia cho 7 mũ 5) : 2020 mũ 2021

Comments ( 2 )

  1. ( 125^2 . 5^4 – 175^5 : 7^5 ) : 2020^2021
    = [ ( 5^3 )^2 . 5^4 – ( 175 : 7 )^5 ] : 2020^2021
    = [ 5^6 . 5^4 – 5^10 ] : 2020^2021
    = [ 5^10 – 5^10 ] : 2020^2021
    = 0 : 2020^2021 = 0

  2. Lời giải và giải thích chi tiết:
    (125^2 . 5^4 – 175^5 : 7^5) : 2020^2021
    = ((5^3)^2 . 5^4 – (175 : 7)^5) : 2020^2021
    = (5^6 . 5^4 – 25^5) : 2020^2021
    = (5^10 – (5^2)^5) : 2020^2021
    = (5^10 – 5^10) : 2020^2021
    = 0 : 2020^2021
    = 0

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

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