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

Toán Lớp 7: 2^13×9^4/6^6×8^3 plssssss lm cách lớp 7

Toán Lớp 7: 2^13×9^4/6^6×8^3
plssssss
lm cách lớp 7

Comments ( 1 )

  1. {2^{13} . 9^{4}}/{6^{6} . 8^{3}}
    = {2^{13} . (3^{2})^{4}}/{(2.3)^{6} . (2^{3})^{3}}
    = {2^{13} . 3^{8}}/{2^{6} . 3^{6}  . 2^{9}}
    = {2^{13} . 3^{8}}/{2^{15} . 3^{6}}
    = {1 . 3^{2}}/{2^{2}.1}
    = 9/4
     

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