Matematik A/Ligninger: Forskelle mellem versioner

<math> \left( x=0 \right) \wedgevee \left( a\cdot x + b = 0 \Leftrightarrow x = \frac{-b}{a} \right) </math>

<math> x = \sqrt{\frac{-c}{a}} \wedgevee x = -\sqrt{\frac{-c}{a}}</math>