Simplify the expression
$\displaystyle {\frac{{{y}^{{2}}+{2}{y}}}{{{y}^{{2}}-{4}}}}$
and give your answer in the form of
$\displaystyle {\frac{{{f{{\left({y}\right)}}}}}{{{g{{\left({y}\right)}}}}}}.$

Your answer for the function $\displaystyle {f{{\left({y}\right)}}}$ is : Preview Question 6 Part 1 of 2  
Your answer for the function $\displaystyle {g{{\left({y}\right)}}}$ is : Preview Question 6 Part 2 of 2