Question

calculati
2 la puterea n +2la puterea n+2
4 la puterea n +2la puterea 2n+1

Answer 1

2 la puterea n +2la puterea n+2= $2^{n}$*(1+4)=$2^{n}$*5


4 la puterea n +2la puterea 2n+1=$2^{2n}$ + $2^{2n+1}$=$2^{2n}$ *(1+2)=$2^{2n}$ *3