Suppose that
f(x) = x^2 \ln(12 - 2 x^2).
Find f'(x) , and use interval notation to give the domain of f .

** Note: ** When entering interval notation in WeBWorK, use
** I ** for \infty , ** -I ** for -\infty ,
and ** U ** for the union symbol. If the set is empty,
enter "{}" without the quotation marks.

Domain =

You can earn partial credit on this problem.