View Code of Problem 42

#include<stdio.h>
#include<math.h>
int main()
{
  double a,b,c,disc,x1,x2,p,q;
  scanf("%lf%lf%lf",&a,&b,&c);
  disc=b*b-4*a*c;
  if(disc>0)
  {
    p=-b/(2*a);
    q=sqrt(disc)/(2*a);
    x1=p+q;
    x2=p-q;
    printf("x1=%7.2f\nx2=%7.2f\n",x1,x2);
  }
  return 0;
}