Answer to Question #225368 in C for MENSAH PAUL OSEI

Question

The roots of the quadratic equation ax

Answer 1

A program to calculate the roots of quadratic equation

#include <stdio.h>
#include <math.h>
int main()
{
  int a, b, c, d;
  double root1, root2;


  printf("Enter a, b and c where a*x*x + b*x + c = 0\n");
  scanf("%d%d%d", &a, &b, &c);


  d = b*b - 4*a*c;


  if (d < 0) { 
    printf("First root = %.2lf + i%.2lf\n", -b/(double)(2*a), sqrt(-d)/(2*a));
    printf("Second root = %.2lf - i%.2lf\n", -b/(double)(2*a), sqrt(-d)/(2*a));
  }
  else { 
    root1 = (-b + sqrt(d))/(2*a);
    root2 = (-b - sqrt(d))/(2*a);


    printf("First root = %.2lf\n", root1);
    printf("Second root = %.2lf\n", root2);
  }


  return 0;
}