#include <iostream>
#include <math.h>

using namespace std;

int main()
{
    int a,b,c,x1,x2;
    cout << "a : ";
    cin >> a;
    cout << "b : ";
    cin >> b;
    cout << "c : ";
    cin >> c;
    cout << "persamaan : (" << a << ") x^2 + (" << b << ") x + (" << c << ") = 0\n";
    x1 = (-1*b + sqrt(b*b-4*a*c))/2*a;
    x2 = (-1*b - sqrt(b*b-4*a*c))/2*a;
    cout << "x1 = " << x1 << endl;
    cout << "x2 = " << x2 << endl;
    return 0;
}