TeX Quellcode:

\begin{array}{rclcl}z^2+\dfrac{3}{4}z-\dfrac{5}{2} &=& 0 &\vert & \text{p-q-Formel} \\z_{1,2} &=& -\dfrac{3}{8}\pm\sqrt{\left(\dfrac{3}{8}\right)^2+\dfrac{5}{2}} \\\\z_{1,2} &=& -\dfrac{3}{8}\pm\sqrt{\dfrac{169}{64}} \\\\z_1 &=& -\dfrac{3}{8}+\dfrac{13}{8} = \dfrac{5}{4} = 1{,}25 \\\\z_2 &=& -\dfrac{3}{8}-\dfrac{13}{8} = -2 \end{array}