Answer: For the GCF one, the GCF would be
because you are factoring from both
and
, the reason it cannot be
is because that exponent value exceeds the exponent value of
.
Explanation:
So when you find a greatest common factor (GCF) you are basically trying to simplify the expression by extracting numbers to put it into its simplest form. The GCF of 15 and 12, is 3. And the GCF of the exponents would be
.