#include <iostream>
#include <math.h>
using namespace std;
int main()
{
	setlocale (LC_ALL, ".ACP");
	float a, b, c;
	float  D1, x1, x2, D2;
	cout << "Введите значения ab + bc + c = 0:" << endl;
    cin >> a >> b >> c;
	D1 = (b * b) - (4 * a * c);
	D2 = sqrt(D1);
    if (D2 > 0)
	{
    x1 = (-1 * (b + D2)) / (2 * a);
	x2 = (-1 * (b - D2)) / (2 * a);
    cout << "x1 = "<< x1 << endl;
    cout << "x2 = "<< x2 << endl;
	}
	else if (D2 = 0)
	{
		x1 = (-b + D2) / (2 * a);
		cout << "x1 = " << x1 << endl;
	}
	else if (D2 < 0);
	{
		cout << "Нет корней" << endl;
	}
		cin.get();
		cin.get();
		return 0;

}