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

Toán Lớp 7: giúp mình làm bài này với A=(25^6.6^10)/9^5.20^5.5^7

Toán Lớp 7: giúp mình làm bài này với A=(25^6.6^10)/9^5.20^5.5^7

Comments ( 2 )

  1. Bạn kham khảo
    A=(25^6. 6^10)/(9^5. 20^5. 5^7)
    ->A=(5^6 . 5^6 . 3^10 . 2^10)/(3^10 . 5^5 . 4^5 . 5^7)
    ->A=(5^12 . 3^10 . 2^10)/(3^10 . 5^12 . 2^10)
    ->A=1

  2. A=(25^{6}.6^{10})/(9^{5}.20^{5}.5^7)
    A=(5^{6}.5^{6}.3^{10}.2^{10})/(3^{10}.5^{5}.4^{5}.5^7)
    A=(5^{12}.3^{10}.2^{10})/(3^{10}.5^{12}.2^{10})
    A=1
     

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

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