Answer
$40$
Work Step by Step
Given
$$\int_{0}^{2}\left(12 x^{3}-3 x^{2}\right) d x$$
\begin{align*}
\int_{0}^{2}\left(12 x^{3}-3 x^{2}\right) d x&=3 x^4 -x^3\bigg|_{0}^{2}\\
&= 48-8-(0-0)\\
&=40
\end{align*}
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