Respuesta :

ANSWER

The greatest common factor of this expression is b

EXPLANATION

There are two terms in this expression:

• ab

,

• -b

a is only in one of them and b is in both terms. Therefore, the GCF is b.

Note that with this, we can use the GCF and the associative property to rewrite the expresion:

[tex]ab-b=(a-1)b[/tex]