If n is any positive integer then 1 + 3 + 5 +...+(2n - 1) = _____?

If n is any positive integer then 1 + 3 + 5 +...+(2n - 1) = _____?

Explanation

The sum of the first n odd numbers is given by:

1 + 3 + 5 + ... + (2n - 1) =