Answer
$\frac{707}{12}.$
Work Step by Step
We have
$$
\int_{-2}^3f(x)dx=\int_{-2}^2f(x)dx+\int_{2}^3f(x)dx\\
=\int_{-2}^2(12-x^2)dx+\int_{2}^3x^3dx\\
=(12x-\frac{1}{3}x^3)_{-2}^2+\frac{1}{4}x^4|_{2}^3\\
=48-\frac{16}{3}+\frac{3^4}{4}-\frac{2^4}{4}=\frac{707}{12}.
$$