Simplify $\frac{25x^2 - 4}{5x^3 - 2x^2}$
25x^2 - 4 (5x - 2) ( 5x + 2) 5x + 2
__________ = ________________ = _________
5x^3 - 2x^2 x^2 ( 5x - 2) x^2
