Answer:
9
Explanation:
I am guessing you´re simplifying this equation.
(The 4 is still an exponent)
Rewrite
as

Now rewrite the equation before as

Now rewrite
as


You will then apply the product rule to


Now rewrite
as 1
You first have to rewrite


Now


Then raise -1 to the second power

Now multiply
by


Now here comes the longest part
Rewrite
as

You first have to use
to rewrite
as


Apply the power rule and multiply the exponents ,


Now combine
and


Now you have cancel the common factor of 4 and 2
Factor 2 out of 4

Cancel the common factors
Now factor 2 out of 2

Cancel the common factor

Rewrite the expression

Divide 2 by 1

Raise 3 to the second power´
9