C# Task,new Task().Start(),Task.Run();TTask.Factory.StartNew

1.

Task task = new Task(() =>
{
MultiplyMethod(a, b);
});
task.Start();

2.

Task task = Task.Run(() =>
{
MultiplyMethod(a, b);
});

3.

Task task = Task.Factory.StartNew(() =>
{
MultiplyMethod(a, b);
});