On how many maximal connected intervals within [-10, 10] is the derivative of f(x) = -4((1(-3(-3|x - 3| + 2) + 3) - 1)/(-2(-3(-3|x - 3| + 2) + 3) + 1))^2 - 4((1(-3(-3|x - 3| + 2) + 3) - 1)/(-2(-3(-3|x - 3| + 2) + 3) + 1)) + 4 positive?

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