Problem:
Find the second derivative of the following function:
$(8-4 x)^5 \sin (9-7 x)$
Answer:
$16 (8-4 x)^3 \left(\left(-49 x^2+196 x-176\right) \sin (9-7 x)-70 (x-2) \cos (9-7 x)\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/calculus/second_derivatives/42082.txt'}