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

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