Question

mn giúp em vs

Answer 1

\(5^{20}:\left(5^{15}.6+5^{15}.19\right)\)

\(=5^{20}:\left[5^{15}\left(6+19\right)\right]\)

\(=5^{20}:\left(5^{15}.25\right)\)

\(=5^{20}:\left(5^{15}.5^2\right)\)

\(=5^{20}:5^{17}\)

\(=5^3=125\)

Answer 2

\(=\dfrac{5^{20}}{5^{15}\cdot25}=\dfrac{5^{20}}{5^{17}}=5^3=125\)