Untitled

import java.util.Scanner;

public class P1 {
	public static void Sol(int a, int b, int c) {
		int delta = b * b - 4 * a * c;

		if (a != 0) {
			if (delta > 0) {
				float x1 = (float) (-b + Math.sqrt(delta)) / (2 * a);
				float x2 = (float) (-b - Math.sqrt(delta)) / (2 * a);

				System.out.println("x1 = " + x1 + " & x2 = " + x2);
			} else if (delta == 0) {
				System.out.println("Phuong trinh co nghiem kep: x = " + (-b * 1.0) / 2 * a);
			} else {
				System.out.println("Phuong trinh vo nghiem");
			}
		}
		else {
			if(b != 0) {
				if(c != 0) {
					System.out.println(-c * 1.0 / b);
				}
				else {
					System.out.println("x = " + 0);
				}
			}
			else {
				System.out.println("Phuong trinh vo so nghiem");
			}
		}
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();

		Sol(a, b, c)
//		Sol(x, n);
//		if (Sol(n)) {
//			System.out.println("YES");
//		} else {
//			System.out.println("NO");
//		}
	}
}