Respuesta :
x 6
------------- - -------------
x^2 - 36 x^2 - 36
x - 6
= ----------------
(x + 6)(x - 6)
1
= ----------
x + 6
------------- - -------------
x^2 - 36 x^2 - 36
x - 6
= ----------------
(x + 6)(x - 6)
1
= ----------
x + 6