Answer:
A.

B.

Explanation:
We have to simplify two examples of exponent using the rules.
1) A. The given expression is
Now,
=
{Since the terms are in product form so, we can treat them separately}
=
{Since, using the property of exponents we can write
and
}
=
(Answer)
B. The given expression is
Now,
=
=
{Since,
provide x ≠ 0}
=
(Answer)