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

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