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

int main() {

        float a,b,c ;
        float delta ;

        printf("entrer la valeur de a \n" );
        scanf("%f",&a);
        printf("entrer la valeur de b \n" );
        scanf("%f",&b);
        printf("entrer la valeur de c \n" );
        scanf("%f",&c);

        printf("%fx^2 + %fx + %f\n",a,b,c);

        delta = pow(b,2) - (4 * a * c);

        if (delta > 0) {
          float x1 = (-b - sqrt(delta)) / (2*a);
          float x2 = (-b + sqrt(delta)) / (2*a);
          printf("x1 = %f     \n",x1 );
          printf("x2 = %f     \n",x2 );
        }

        if (delta == 0) {
          float x = -b / (2*a);
          printf("x = %f     \n",x );
        }
        if (delta < 0){
          printf("DISILI INI PI PI KILKILI \n");
        }

  return 0;
}