How do you simplify 8+2(3+5)^2 using order of operations?

$8 + 2 {\left(3 + 5\right)}^{2}$
$= 8 + 2 {\left(8\right)}^{2}$
$= 8 + 2 \left(64\right)$
$= 8 + 128$
$= 136$