/* Program to find the roots of a quadratic equation */
/* Problem 4 */

#include <stdio.h>
#include <conio.h>
#include <math.h>

main()
{
float a,b,c;
float D;
float x1, x2;
clrscr();
printf("Enter the coefficient of x^2 i.e. a : ");
scanf("%f",&a);
printf("Now enter the coefficient of x i.e. b : ");
scanf("%f",&b);
printf("Finally enter the constant term i.e. c : ");
scanf("%f",&c);
D = (b * b) - (4 * a * c);
if (D < 0)
	printf("\n\nRoots are imaginary.");
else
	if (D == 0)
		printf("\n\nRoots are equal and is %f",c/a);
	else
		{
			x1 = (-b + sqrt(D)) / (2 * a);
			x2 = (-b - sqrt(D)) / (2 * a);
			printf("\n\nFirst root is %f",x1);
			printf("\nSecond root is %f",x2);
		}
printf("\n\nPress any key to exit...");
getch();
}