The derivative of a constant times a function is the constant times the derivative of the function.
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
So, the result is:
Now simplify:
The answer is:
-4*x
---------
2
/ 2 \
\x - 1/
/ 2 \
| 4*x |
4*|-1 + -------|
| 2|
\ -1 + x /
----------------
2
/ 2\
\-1 + x /
/ 2 \
| 2*x |
-48*x*|-1 + -------|
| 2|
\ -1 + x /
--------------------
3
/ 2\
\-1 + x /