Question

4 la putereax+2=8la puterea2

Answer 1

4 la puterea x+2=8 la puterea 2
4 la puterea x+2= 64
4 la puterea x+2=4 la puterea 3
puterea x+2=puterea 3
x+2=3
x=3-2
x=1

Answer 2

$4^{x}$ +2 = $8^{2}$
$2^{2x}$ +2 = $2^{6}$
$2^{2x}$= $2^{6}$ -2
 $2^{2x}$= $2^{5}$
puterile se egaleaza ⇒ 2x=5
   x=5/2=2,5