________________ / 2 \/ x - 12*x + 56
/ ________________\ d | / 2 | --\\/ x - 12*x + 56 / dx
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 a constant times a function is the constant times the derivative of the function.
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
So, the result is:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
-6 + x ------------------- ________________ / 2 \/ x - 12*x + 56
2
(-6 + x)
1 - --------------
2
56 + x - 12*x
-------------------
________________
/ 2
\/ 56 + x - 12*x
/ 2 \
| (-6 + x) |
3*|-1 + --------------|*(-6 + x)
| 2 |
\ 56 + x - 12*x/
--------------------------------
3/2
/ 2 \
\56 + x - 12*x/