On how many maximal connected intervals within [-10, 10] is the derivative of f(x) = (-1(3|(-5x^2 - 5x + 5) + 1| + 2) + 2)/(2(3|(-5x^2 - 5x + 5) + 1| + 2) - 1) negative?

Present the answer in LaTex format: \boxed{Your answer}
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