Answer
$-29$
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:
$g(-2) = 2(-2)^3-(-2)^2+4(-2)-1
\\g(-2)=2(-8)-4+(-8)-1
\\g(-2)=-16-4-8-1
\\g(-2)=-20-8-1
\\g(-2)=-28-1
\\g(-2)=-29$