Question

5^n+3 + 5^n/ (5^n-1) . 5

Answer 1

$\frac{5^n^+^3+5^n}{(5^n^-^1).5} = \\\frac{5^n^+^3+5^n}{5^n} = \\\frac{5^n^+^3}{5^n}  + \frac{5^n}{5^n} =\\5^{3} + 1 =125 + 1 =126$