Programming

1. Compile and run the examples. Check the following test cases:

   2 2 -12
   1 5 6
   1 0 -1
   3 -12 12
   1 0 1
   1 2 2
   1 3 a
   2 4

2. Create a constructor for a QuadraticEquation from given solutions x1, x2. Extend TestQuadraticEquation: If it is called with two arguments, then the new constructor is used. Test your program!

3. What happens, when a = 0 ? Extend QuadraticEquation to handle this case correctly!