Question

2(4+a²+4a ) /2(4+a²-4a )

Answer 1

Answer:

That is equal to

(4 + a² + 4a)(4 + a² - 4a)

= (a + 2)²/(a - 2)²

$= {( \frac{a + 2}{a - 2} })^{2}$

Hope this helps