Respuesta :

HomertheGenius
[tex] \frac{ x^{2} -16}{ x^{2} +5x+6}: \frac{x}{y} \frac{ x^{2} +5x+4}{ x^{2} -2x-8}= \\ = \frac{(x+4)(x-4)}{(x+2)(x+3)}* \frac{(x-4)(x+2)}{(x+4)(x+1)}= [/tex]
= ( x - 4 )² / ( x + 3 ) ( x + 1 ),  restrictions: x ≠ - 3,  x ≠ - 1;
Answer: A )