# How do you simplify 4|3-2*6|-3^2?

$= 4 \left\mid 3 - 2 \cdot 6 \right\mid - {3}^{2}$
$= 4 \left\mid 3 - 12 \right\mid - 9$
$= 4 \cdot \left\mid - 9 \right\mid - 9$
$= 4 \cdot 9 - 9$
$= 27$