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

Toán Lớp 6: viết các thương sau dưới dạng 1 luỹ thừa a 2^10 :8^2 ;18^10:3^10 ;27^5 :81^3 b 10^6:100;5^9:25^3;4^10:64^3;2^25:32^4;18^4:9^4

Toán Lớp 6: viết các thương sau dưới dạng 1 luỹ thừa a 2^10 :8^2 ;18^10:3^10 ;27^5 :81^3 b 10^6:100;5^9:25^3;4^10:64^3;2^25:32^4;18^4:9^4

Comments ( 2 )

  1. 2^10 : 8^2 = 2^10 : ( 2^3 )^2 = 2^10 : 2^6 = 2^4
    18^10 : 3^10 = ( 18 : 3 )^10 = 6^10
    27^5 : 81^3 = ( 3^3 )^5 : ( 3^4 )^3 = 3^15 : 3^12 = 3^3
    10^6 : 100 = 10^6 : 10^2 = 10^4
    5^9 : 25^3 = 5^9 : ( 5^2 )^3 = 5^9 : 5^6 = 5^3
    4^10 : 64^3 = ( 2^2 )^10 : ( 2^6 )^3 = 2^20 : 2^18 = 2^2
    2^25 : 32^4 = 2^25 : ( 2^5 )^4 = 2^25 : 2^20 = 2^5
    18^4 : 9^4 = ( 18 : 9 )^4 = 2^4

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