SAT Math Practice Question
$$\begin{aligned}& f(x)=x^{3}-9 x \\& g(x)=x^{2}-2 x-3\end{aligned}$$Which of the following expressions is equivalent to$\frac{f(x)}{g(x)}$, for $x>3 ?$
- A.$\frac{1}{x+1}$
- B.$\frac{x+3}{x+1}$
- C.$\frac{x(x-3)}{x+1}$
- D.$\frac{x(x+3)}{x+1}$
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