2010-II-03

Ans: D

\begin{array}{cl} \frac{1}{2 x - 3} + \frac{1}{2 x + 3} \\ = & \frac{(2 x + 3) + (2 x - 3)}{(2 x - 3) (2 x + 3)} \\ = & \frac{4 x}{4 x^{2} - 9} \end{array}

2010, HKCEE, Paper 2 Rational Functions