# What is the first step in simplifying the expression (2-3times4+5)^2?

${\left(2 - \left(3 \times 4\right) + 5\right)}^{2} = {\left(2 - 12 + 5\right)}^{2} =$
${\left(\left(2 - 12\right) + 5\right)}^{2} = {\left(- 10 + 5\right)}^{2} = {\left(- 5\right)}^{2} = 25$