1036.c

/*
  @autor: Malbolge;
  @data: 18/07/2018;
  @nome: Fórmula de Bhaskara;
*/

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

float main (){

	double a, b, c, x1, x2;
	double delta;
	scanf("%lf %lf %lf", &a, &b, &c);

	delta = b * b - 4 * a * c;

	if (a == 0){

		printf("Impossivel calcular\n");

	}
	else{

		if (delta > 0){

			x1 = (-b + pow(delta,0.5))/(2*a);
			x2 = (-b - pow(delta,0.5))/(2*a);
			printf("R1 = %.5lf\n", x1);
			printf("R2 = %.5lf\n", x2);

		}
		else{

			printf("Impossivel calcular\n");

		}
	}
}