For the function f(x) = 5(-1e^(-2((2x - 2)/(2x + 2))) + 2)^2 + 1(-1e^(-2((2x - 2)/(2x + 2))) + 2) + 4, 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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