All of the programs in this section ignore the possibility that the value of a is zero, or is close to zero. What will happen if quadratic_equation_solver is run with input a = 0? Modify the program...

All of the programs in this section ignore the possibility that the value of a is zero,

or is close to zero. What will happen if quadratic_equation_solver is run with

input a = 0? Modify the program to handle this case. If a = 0, what happens if b is

also zero? Modify the program to handle this case also. (Section 2.2 explains how

to test if a = 0.)