Question

\frac { 5 ^ { n + 3 } - 16 \times 5 ^ { n + 1 } } { 12 \times 5 ^ { n } - 2 \times 5 ^ { n + 1 } }​

Answer 1

Answer:

22.5

Step-by-step explanation:

take 5^(n+1) common from numerator and 5^n from denominator

them eq. becomes

{5^(n+1)(5^2 -16)}/{5^n (12-2×5)}

5 (25-16)/(12-10)

5×9/2

45/2

22.5