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

Toán Lớp 6: (5^19 : 5^17 – 4) : 7 giúp mik nhed

Toán Lớp 6: (5^19 : 5^17 – 4) : 7
giúp mik nhed

Comments ( 2 )

  1.     ( 5¹⁹ : 5¹⁷ – 4 ) : 7
    = ( 5¹⁹−¹⁷ – 4 ) : 7
    = ( 5² – 4 ) : 7
    = ( 25 – 4 ) :7
    = 21 : 7
    = 3
    *Chúc bạn hok tốt!

  2. $#AS$
    (5^19 : 5^17 – 4) : 7
    = ( $5^{19 – 17}$ – 4) : 7
    = (5^2 – 4) : 7
    = (25 – 4) : 7
    = 21 : 7
    = 3

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