TeX Quellcode:

\begin{array}{rclcl} (x+33)^2 &=& -8(-47+x)^2 \cr x^2+66x+1.089 &=& -8(x^2-94x+2.209) \cr x^2+66x+1.089 &=& -8x^2+752x-17.672 & \vert & +8x^2-752x+17.672 \cr 9x^2-686x+18.761 &=& 0 & \vert & :9 \cr x^2-\dfrac{686}{9}x+\dfrac{18.761}{9} &=& 0 \cr x_{1,2} &=& \dfrac{343}{9} \pm \sqrt{\dfrac{117.649}{81}-\dfrac{18.761}{9}} \cr x_{1,2} &=& \dfrac{343}{9} \pm \sqrt{-\dfrac{51.200}{81}} \end{array}