• nonzerorand expects 2 arguments

Simplify the expression

y2+4y+4y24\displaystyle {\frac{{{y}^{{2}}+{4}{y}+{4}}}{{{y}^{{2}}-{4}}}}

Give your answer in the form of AB.\displaystyle {\frac{{{A}}}{{{B}}}}.

Your answer for the expression A\displaystyle {A} is :  
Your answer for the expression B\displaystyle {B} is :