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

Toán Lớp 6: [(125) mũ 3 . 7 mũ 5 -(175) mũ 5 : 5 ] : 2016 mũ 2017

Toán Lớp 6: [(125) mũ 3 . 7 mũ 5 -(175) mũ 5 : 5 ] : 2016 mũ 2017

Comments ( 2 )

  1. Giải đáp:
    $0.$
    Lời giải và giải thích chi tiết:
    $(125^3 . 7^5 -175^5 : 5 ) : 2016^{2017}\\ =[(5^3)^3 . 7^5 -(5^2.7)^5 : 5 ] : 2016^{2017}\\ =[5^{3.3} . 7^5 -5^{2.5}.7^5 : 5 ] : 2016^{2017}\\ =[5^9 . 7^5 -5^10.7^5 : 5 ] : 2016^{2017}\\ =[5^9 . 7^5 -5^9.7^5 ] : 2016^{2017}\\ =0 : 2016^{2017}\\ =0.$

  2. Lời giải chi tiết:
    (125^(3).7^5-175^5:5):2016^2017
    =((5^3)^(3).7^5-(5^(2).7)^5:5)/2016^2017
    =(5^(9).7^5-5^(10).7^5:5)/2016^2017
    =(5^(9).7^5-5^(9).7^5)/2016^2017
    =(5^9.(7^5-7^5))/2016^2017
    =(5^(9).0)/2016^2017
    =0/2016^2017
    =0

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