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

Toán Lớp 7: $\frac{2^{15} . 9^{4}}{6^{6} . 8^{3}}$

Toán Lớp 7: $\frac{2^{15} . 9^{4}}{6^{6} . 8^{3}}$

Comments ( 2 )

  1. (2^15 .9^4)/(6^6 .8^3)
    = (2^15 .(3^2)^4)/((2.3)^6 .(2^3)^3)
    = (2^15. 3^(2.4))/(2^6 .3^6 .2^(3.3))
    = (2^15 .3^8)/(2^6 .3^6 .2^9)
    = (2^15 .3^8)/(2^(6+9) .3^6)
    = (2^15 .3^8)/(2^15 .3^6)
    = (3^8)/(3^6)
    = 3^2
    = 9

  2. Sorry bạn mình đánh worf xong dán lên paint nên hơi lâu

    toan-lop-7-frac-2-15-9-4-6-6-8-3

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