________ / 5 \/ x - 7
/ ________\ d | / 5 | --\\/ x - 7 / 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 the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
4
5*x
-------------
________
/ 5
2*\/ x - 7
/ 5 \
3 | 5*x |
5*x *|2 - -----------|
| / 5\|
\ 4*\-7 + x //
----------------------
_________
/ 5
\/ -7 + x
/ 5 10 \
2 | 5*x 25*x |
15*x *|2 - ------- + ------------|
| 5 2|
| -7 + x / 5\ |
\ 8*\-7 + x / /
----------------------------------
_________
/ 5
\/ -7 + x