Question

a (n + 1) – b (n + 1) + n + 1 =

Answer 1

Respuesta:

Explicación paso a paso:

MULTIPLICANDOLO

an+a-bn-b+n+1=

an-bn+a+n+1=

n(a-b)+a+n+1=

an-bn= -a-n-1

-bn+an= -a-n-1

bn+an=a-n-1