Express 6x2−9x−11(2x+1)(x−2)\displaystyle \frac{6x^2 - 9x - 11}{(2x + 1)(x - 2)}(2x+1)(x−2)6x2−9x−11 in the form A+B(2x+1)+C(x−2)\displaystyle A + \frac{B}{(2x + 1)} + \frac{C}{(x - 2)}A+(2x+1)B+(x−2)C