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

Toán Lớp 7: Rút gọn biểu thức : G =2^12 . 3^5 – 4^6 . 9^2 =========–

Toán Lớp 7: Rút gọn biểu thức : G =2^12 . 3^5 – 4^6 . 9^2
—————————–
(2^2 . 3)^6 + 8^4 . 5^5

Comments ( 2 )

  1. Giải đáp:G=27/1927
     
    Lời giải và giải thích chi tiết:
    G=(2^{12}.3^{5}-4^{6}.9^{2})/((2^{2}.3)^{6}+8^{4}.5^5)
    G=(2^{12}.3^{5}-(2^{2})^{6}.(3^{2})^{2})/((2^{2})^{6}.3^{6}+(2^{3})^{4}.5^{5})
    G=(2^{12}.3^{5}-2^{12}.3^{4})/(2^{12}.3^{6}+2^{12}.5^5)
    G=(2^{12}.3^{4}.(3-1))/(2^{12}.(3^6+5^5))
    G=(3^{4}.2)/(3^6+5^5)
    G=(27.2)/(729+3125)
    G=54/3854
    G=27/1927

  2. G = (2^12 . 3^5 – 4^6 . 9^2)/((2^2 . 3)^6 + 8^4 . 5^5)
    = (2^12 . 3^5 – 2^12 . 3^4)/(2^12 . 3^6 + 2^12 . 5^5)
    = (2^12 . 3^4 . (3 – 1))/(2^12 . (3^6 + 5^5))
    = (1 . 3^4 . 2)/(1 . (3^6 + 5^5))
    = (3^4 . 2)/(3^6 + 5^5)
    (Chúc bạn học tốt)
     

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

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