Question

y, 5²⁰:(5¹⁵.6+5¹⁵.19)

Answer 1

5²⁰:(5¹⁵.6+5¹⁵.19)

5²⁰:[5¹⁵.(6+19)]

5²⁰:(5¹⁵.25)

5²⁰:(5¹⁵.5²)

5²⁰:5¹⁷

5³

Answer 2

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

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

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

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

\(=5^{20}:\left[5^{15+2}\right]\)

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

\(=5^3\)

\(=125\)