Quadratic Equation

using System;

namespace Problem_5._Quadratic_Equation
{
    class Program
    {
        static void Main(string[] args)
        {
            double firstCoefficient = double.Parse(Console.ReadLine());
            double secondCoefficient =double.Parse(Console.ReadLine());
            double thirdCoefficient = double.Parse(Console.ReadLine());
            double discriminant = Math.Pow(secondCoefficient, 2) - 4 * firstCoefficient * thirdCoefficient;
            double root1 = 0;
            double root2 = 0;
            if (discriminant == 0)
            {
                root1 = -(secondCoefficient / (2 * firstCoefficient));
                Console.WriteLine($"x1={root1};x2={root1}");
            }
            else
            {
                root1 = -(secondCoefficient + Math.Sqrt(discriminant)) / (2 * firstCoefficient);
                root2 = -(secondCoefficient - Math.Sqrt(discriminant)) / (2 * firstCoefficient);
                Console.WriteLine($"x1={root1};x2={root2}");
            }
        }
    }
}