Calcular valores de una función Ejercicio C# - Curso de Programación C# (C Sharp)

using System;
public class exercise56
{
    public static void Main()
    {
        int y, x;

        Console.WriteLine("y = x² - 2x +1");
        Console.WriteLine();

        for (x = -10; x <= 10; x++)
        {
            y = x * x - 2 * x + 1;
            Console.WriteLine(
                "x = {0} ; y=({0})² - 2*({0}) +1 = {1}",
                x, y);
        }
    }
}