For the function f(x) = 5(-2|(-2((1x - 3)/(2x - 1))^2 - 1((1x - 3)/(2x - 1)) - 3)| - 2) - 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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