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

Toán Lớp 7: 10^3 + 5.10^2 + 5^3/6^3 + 3.6^2 + 3^3 giúp nào mấy bạn :)

Toán Lớp 7: 10^3 + 5.10^2 + 5^3/6^3 + 3.6^2 + 3^3
giúp nào mấy bạn 🙂

Comments ( 1 )

  1. $\frac{10^3+5.10^2+5^3}{6^3+3.6^2+3^3}$ = $\frac{2^3.5^3+5.2^2.5^2+5^3}{2^3.3^3+3.2^2.3^2+3^3}$ 
    = $\frac{5^3(2^3+2^2+1)}{3^3(2^3+2^2+1)}$ = $\frac{5^3}{3^3}$ =$\frac{125}{27}$

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

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