A square has side length 2x2 - 5. What is the perimeter of the square?
4x^2 - 10
4x^2 – 20 + 25
8x^2 - 10
8x^2 - 20
4x^2 - 10
4x^2 – 20 + 25
8x^2 - 10
8x^2 - 20