Answer
$f(3)=-15$
Work Step by Step
The function is given by:
$$f(x)=-2x^2+3x-6$$
Substitute $x=3$:
$$f(3)=-2(3)^2+3(3)-6$$
$$f(3)=-2\cdot9+9-6$$
$$f(3)=-18+3=-15$$
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