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

Toán Lớp 6: (4^20.8^15):(4^5.16^3) giúp mik nhé

Toán Lớp 6: (4^20.8^15):(4^5.16^3)
giúp mik nhé

Comments ( 2 )

  1. (4^20 . 8^15) : (4^5 . 16^3)
    = [4^20 . (2^3)^15] :[4^5 . (2^4)^3]
    = (4^20 . 2^45) : (4^5 . 2^12)
    = (4^20 : 4^5) . (2^45 : 2^12)
    = 4^15 . 2^33
    = (2^2)^15 . 2^33
    = 2^30 . 2^33
    = 2^63
     

  2. Giải đáp:(4^{20}.8^{15}):(4^{5}.16^{3})=2^{63}.
     
    Lời giải và giải thích chi tiết:
    (4^{20}.8^{15}):(4^{5}.16^{3})
    =[(2^{2})^{20}.(2^{3})^{15}):[(2^{2})^{5}.(2^{4})^{3}]
    =(2^{40}.2^{45}):(2^{10}.2^{12})
    =2^{40+45}:2^{10+12}
    =2^{85}:2^{22}
    =2^{85-22}
    =2^{63}.

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