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