class PersamaanKuadrat {
    public static void main(String[] args) {
        double a = 1;
        double b = -2;
        double c = 1;
 
        double diskriminan = b * b - 4 * a * c;
 
        if (diskriminan >= 0) {
            double x1 = (-b + Math.sqrt(diskriminan)) / (2 * a);
            double x2 = (-b - Math.sqrt(diskriminan)) / (2 * a);
 
            System.out.printf("x1 = %.4f\n", x1);
            System.out.printf("x2 = %.4f\n", x2);
        } else {
            System.out.println("Persamaan tidak punya akar real.");
        }
    }
}
 

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