Question

What is the greatest common factor of the terms in the expression ab-b?

Answer 1

The greatest common factor of this expression is b

Step-by-step 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:

`ab-b=(a-1)b`