#### Answer

$19$

#### Work Step by Step

RECALL:
$g(a)$ represents the value of the function $g$ when $x=a$.
Thus, $g(2)$ represents the value of the function $g$ when $x=2$.
Substitute $2$ to $x$ in the function $g$ to obtain:
$g(2) = 2(2)^3-2^2+4(2)-1
\\g(2)=2(8)-4+8-1
\\g(2)=16-4+8-1
\\g(2)=12+8-1
\\g(2)=20-1
\\g(2)=19$