Let $\displaystyle {f{{\left({x}\right)}}}={\frac{{{1}-{5}{x}}}{{{1}+{5}{x}}}}$.
Then $\displaystyle {f}'{\left({2}\right)}$ is Preview Question 6 Part 1 of 3  

and $\displaystyle {f}{''}{\left({2}\right)}$ is Preview Question 6 Part 2 of 3  

and $\displaystyle {f}{'''}{\left({2}\right)}$ is Preview Question 6 Part 3 of 3  

Warning: The last one is hard!