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

Toán Lớp 8: CMR $8^{2021}$ + 5 $5^{2021}$ + $17^{2020}$ – $4^{2020}$ chia hết cho 13.

Toán Lớp 8: CMR
$8^{2021}$ + 5 $5^{2021}$ + $17^{2020}$ – $4^{2020}$ chia hết cho 13.

Comments ( 1 )

  1. 8^2021+5^2021+17^2020-4^2020
    =(8+5)^2021+(17-4)^2020
    =13^2021+13^2020
    =13^(2021+2020)
    =13^4041
    Vậy biểu thức trên chia hết cho 13
    Cho mk xin hay nhất please
    Thank you

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