using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int a = Convert.ToInt32(textBox1.Text);
            int b = Convert.ToInt32(textBox2.Text);
            int c = Convert.ToInt32(textBox3.Text);

            int disc = (b * b) - (4 * a * c);

            if (disc == 0)
            {
                double x = -b / (2 * a);
                label8.Text = "Корень:" + x.ToString();
            }

            if (disc > 0)
            {
                double x1 = (-b + Math.Sqrt(disc)) / (2 * a);
                double x2 = (-b + Math.Sqrt(disc)) / (2 * a);
                label8.Text = "Корени:" + x1.ToString() + "  " + x2.ToString();
            }
            else if (disc < 0)
            {
                MessageBox.Show("Уравнение не имеет действительных корней");
            }
        }

    }
}