For the function f(x) = 5(5(2|((-1x - 3)/(-2x + 3)) - 1| - 1))^2 - 1(5(2|((-1x - 3)/(-2x + 3)) - 1| - 1)) - 4, 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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