Question

Me ayudan con factor común:
1) a(n+2)+n+2
2) x(a+1)-a-1
3) a^2+1-b(a^2+1)

Answer 1

1)an+2n+n+2

a (n+2)+1 (n+2)

(n+2)(a+1)

2)ax+x-a-1

x (a+1)-(a+1)

(a+1)(x-1)

3)(1-b)(a²+1)

Saludos :)