For the function f(x) = 3(3sin(3π(2|x + 3| - 3) - 3) + 2)^2 + 3(3sin(3π(2|x + 3| - 3) - 3) + 2) + 2, 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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