60đ ai vô tl thì nhận, spam thì biến :) k) $\frac{4^{5}.9^{4} – 2. 6^{9}}{2^{10} 3^{8} + 6^{8} . 20}$

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1. `\frac{4^{5}.9^{4} – 2. 6^{9}}{2^{10} 3^{8} + 6^{8} . 20}`

   `=[2^10 .3^8-2 .2^9 .3^9]/[2^10 .3^8 + 2^8 .3^8 .2^2 .5]`

   `=[2^10 .3^8- 2^10 .3^9]/[2^10 .3^8 + 2^10 .3^8 .5]`

   `=[2^10 .3^8(1-3)]/[2^10 .3^8(1+5)]`

   `=[-2]/[6]`

   `=[-1]/[3]`

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2. #HỌC TỐT NHA!

   #Nocopy 

    

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