March 25 - Filming begins on George Lucas' Star Wars science fiction film. In one of the best business decisions in film history, Lucas cuts his directing fee by $500,000 to gain ownership of merchandising and sequel rights
... non-zero. These solutions are also called the roots of the equation. The formula reads
<math>
x=\frac{-b \pm \sqrt {b^2-4ac}}{2a}
</math>
The term b2 ...