Question

2 la puterra 2017 -2 la puterea 2016

Answer 1

2 la 2017-2016=2 la 1 = 2

Answer 2

${2}^{2017} - {2}^{2016} =$
$= {2}^{2016} \times (2 - 1) =$
$= {2}^{2016} \times 1$
$= {2}^{2016}$