Question 128609
{{{(x+2)^2/(x^2-4)}}}


Remember the factorization of the difference of two squares:
{{{a^2-b^2=(a+b)(a-b)}}}


So:
{{{(x+2)^2/(x^2-4)=((x+2)(x+2))/((x+2)(x-2))=(cross((x+2))(x+2))/(cross((x+2))(x-2))=(x+2)/(x-2)}}}