On how many maximal connected intervals within [-10, 10] is the derivative of f(x) = -4(3sin(3π(-2|(3x - 4) - 3| - 3) - 3) + 2)^2 - 1(3sin(3π(-2|(3x - 4) - 3| - 3) - 3) + 2) + 1 negative?

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