Express 9−4x2−x(2x−1)(2−x)\displaystyle \frac{9-4x^2-x}{(2x-1)(2-x)}(2x−1)(2−x)9−4x2−x in the form A+B(2x−1)+C(2−x)\displaystyle A + \frac{B}{(2x-1)} + \frac{C}{(2-x)}A+(2x−1)B+(2−x)C
