Question

$x { 1 -}^{2}$
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Answer 1

Answer:

(x-4)/(x+4)

Step-by-step explanation:

11. Simplify:

$= \frac{x^2-16}{x^2+8x+16}\\\\\\= \frac{(x^2-4^2)}{(x+4)^2}\\\\\\=\frac{(x+4)(x-4)}{(x+4)(x+4)}\\\\\\=\frac{x-4}{x+4}$