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

Toán Lớp 7: $\frac{2^{11} . 9^{3}}{6^{5} . 8^{2}}$

Toán Lớp 7: $\frac{2^{11} . 9^{3}}{6^{5} . 8^{2}}$

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    (2^11 . 9^3)/(6^5 . 8^2)
    = (2^11 . (3^2)^3)/((3.2)^5 . (2^3)^2)
    = (2^11 . 3^6)/(3^5 . 2^5 . 2^6)
    = (2^11 . 3^6)/( 3^5 . 2^11)
    = 3^6/3^5
    = 3/1
    = 3
    $#Vịt vàng$

  2. {2^11 . 9^3}/{6^5 . 8^2}
    = {2^11 . (3^2)^3}/{(2 . 3)^5 . (2^3)^2}
    = {2^11 . 3^6}/{2^5 . 3^5 . 2^6}
    = {2^11 . 3^6}/{2^11 . 3^5}
    = 3^1
    = 3
    #dtkc

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