Question

[❤Firei_Star❤]

Rút gọn biểu thức 

a) \(\frac{2^7.9^3}{6^5.8^2}\)             b) \(\frac{6^3+3.6^2+3^3}{-13}\)             c) \(\frac{5^4.20^4}{25^5.4^5}\)

3 tick nha mn 

Answer 1

[Nguyễn Văn Quyến]

\(a,=\frac{2^7\cdot\left(3^2\right)^3}{2^5\cdot3^5\cdot2^3}=\frac{2^7\cdot3^6}{2^8\cdot3^5}=\frac{3}{2}\)

Answer 2

[༺ℬøşş༻AFK_sasuke(box -nv)]

câu a)

\(=\frac{2^7\times\left(3^2\right)^3}{2^5\times3^5\times2^3}=\frac{2^7\times3^6}{2^8\times3^5}=\frac{3}{2}\)