Question

\(\dfrac{3^7.8^5}{6^6.\left(-2\right)^{12}}\)

Giúp mk nhoa

Answer 1

Giải:

\(\dfrac{3^7.8^5}{6^6.\left(-2\right)^{12}}\)

\(=\dfrac{3^7.8^5}{6^6.2^{12}}\)

\(=\dfrac{3^7.2^{15}}{3^6.2^6.2^{12}}\)

\(=\dfrac{3^7.2^{15}}{3^6.2^{18}}\)

\(=\dfrac{3}{2^3}\)

\(=\dfrac{3}{8}\)

Vậy ...

Answer 2

\(\dfrac{3^7.8^5}{6^6.\left(-2\right)^{12}}=\dfrac{3^7.2^{15}}{2^6.3^6.2^{12}}=\dfrac{3}{8}\)

Answer 3

\(\dfrac{3^7.8^5}{6^6.\left(-2\right)^{12}}=\dfrac{3^7.\left(2^3\right)^5}{\left(2.3\right)^6.2^{12}}=\dfrac{3^7.2^{15}}{2^6.3^6.2^{12}}=\dfrac{3}{2^3}=\dfrac{3}{8}\)