Question

(5^2n+1+4*5^2n)/5^2n

Answer 1

$\frac{ {5}^{2n + 1} + 4 \times {5}^{2n} }{ {5}^{2n} } = \frac{ {5}^{2n + 1} }{ {5}^{2n} } + \frac{4 \times {5}^{2n} }{ {5}^{2n} }$

$= {5}^{2n + 1 - 2n} + 4 = {5}^{1} + 4 = 5 + 4 = 9$