TeX Quellcode:

\begin{array}{rclll} f(x) &=& -\dfrac{5}{2}x^2+10x+\dfrac{3}{8} \cr\cr f(2) &=&-\dfrac{5}{2} \cdot 2^2+10\cdot 2+\dfrac{3}{8} &=& \dfrac{83}{8} \end{array}