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