Question

2 la puterea n+3 +2 la puterea n+1 - 2 la puterea n egal cu 9x4 la puterea 13

Answer 1

$2^{n+3}$+$2^{n+1}$-$2^{n}$=9·4¹³
$2^{n}$(2³+2¹+2°)=9·4¹³
$2^{n}$·9=9·4¹³
$2^{n}$=4¹³
$2^{n}$=2²⁶
n=26