write a python program to calculate the roots of ax² + bx + c = 0

Insert a test to cover the special cases a = 0 and a = b = 0. (Here it would be nice, but not required, to have your code write the solution to a linear equation.)

Insert a test to quit if the roots are not real.

Compute the roots using the standard formula

 x = [-b +/- sqrt(b^2 - 4*a*c)]/(2*a) 

and using the alternative formula

 x = 2*c/[-b -/+ sqrt(b^2 - 4*a*c)]

run the program for these cases

Then run your program for the cases

 a = 0.02, b = 2, c = 4 a = 2e-8, b = 3, c = 5 a = 2e-8, b = 8, c = 1e-7