// Solving ax^2 + bx + c = 0
#include <iostream>
#include <math.h>
using namespace std;

const double a=1., b=3., c=-4.; // constant variables 
                                // & initial values
double D, x1, x2;

int main()
{
  D = b*b-4.*a*c; // determinant

  if (D>=0){
    x1 = (-b + sqrt(D))/(2.*a); // 1st root
    x2 = (-b - sqrt(D))/(2.*a); // 2nd root
    cout << x1 << " " << x2 << endl;
  }
}