Problem:
Differentiate the following function:
$\sqrt{4-4 x} \log \left(4 x^2+9\right)$
Answer:
$\frac{-\frac{16 (x-1) x}{4 x^2+9}-\log \left(4 x^2+9\right)}{\sqrt{1-x}}$
{'source': 'AMPS', 'file': 'amps/mathematica/calculus/derivatives/18801.txt'}