\(\begin{aligned} & \int\limits _{-1}^{3\text{,}3}5x^{2}\text{d}x-10\int\limits _{-1}^{3\text{,}3}\frac{1}{2}x^{2}\text{d}x\\= & \int\limits _{-1}^{3\text{,}3}5x^{2}\text{d}x-\int\limits _{-1}^{3\text{,}3}10\cdot\frac{1}{2}x^{2}\text{d}x\\= & \int\limits _{-1}^{3\text{,}3}5x^{2}\text{d}x-\int\limits _{-1}^{3\text{,}3}5x^{2}\text{d}x\\= & \int\limits _{-1}^{3\text{,}3}\left(5x^{2}-5x^{2}\right)\text{d}x\\= & \int\limits _{-1}^{3\text{,}3}0\,\text{d}x\\= &\, 0\end{aligned}\)