Question

Simplificati:
$\frac{a ^{2}-16 }{8+2a}$

Answer 1

(a²-16)/(8+2a)=
=(a-4)(a+4)/3(4+a)=
=(a-4)/3

Answer 2

= ( a - 4)( a + 4) supra 2( a + 4)
= ( a - 4) supra 2, se simplifica cu ( a + 4)