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

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