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

Toán Lớp 8: `(5*4^(15)*9^9-4*3^(20)*8^9)/(5*2^9*6^19-7*2^29*27^6)` Rút gọn phân thức

Toán Lớp 8: (5*4^(15)*9^9-4*3^(20)*8^9)/(5*2^9*6^19-7*2^29*27^6)
Rút gọn phân thức

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    (5*4^(15)*9^9-4*3^(20)*8^9)/(5*2^9*6^19-7*2^29*27^6)
    =(5*2^30*3^18-2^2*3^(20)*2^27)/(5*2^9*2^19*3^19-7*2^29*3^18)
    =(5*2^30*3^18-3^(20)*2^29)/(5*2^28*3^19-7*2^29*3^18)
    =(2^29*3^18*(5*2-3^2))/(2^28*3^18*(5*3-7*2))
    =(2*1)/1
    = 2

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

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