// Solving ax^2 + bx + c = 0 for a=1, b=3, c=-4
#include <iostream>
#include <math.h>
using namespace std;

double a, b, c; // declaring variables of type "double"

int main()
{
  a = 1.; // assigning value 1 to variable a
  b = 3.;
  c = -4.;

  cout << (-b + sqrt(b*b-4.*a*c))/(2.*a) << endl;
  cout << (-b - sqrt(b*b-4.*a*c))/(2.*a) << endl;
}