Question

If 5^n = 8 find 5^2n+3

Answer 1

Explanation:

I assume this is 5^(2n+3) though it is not actually posted this way

5^(2n + 3 ) = 5^2n * 5^3

= (5^n)^2 * 5^3 we know 5^n = 8

(8)^2 + 5^3 = 64 + 125 = 189