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