For the function f(x) = -3sin(1π(-4(2|x - 2| + 3)^2 - 5(2|x - 2| + 3) - 5) + 1) - 3, find the number of maximal connected intervals in [-10, 10] where f'(x) < 0.

Present the answer in LaTex format: \boxed{Your answer}
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