For the cubic function f (x) = x ^ 3-3x ^ 2-3mx + 4 (M is a constant), the monotone interval of F (x) is obtained

F '(x) = 3x ^ 2-6x-3m has a solution, the discriminant is greater than or equal to 0, M > > - 1, because m is a constant, so m = - 1
F '(x) = 3x ^ 2-6x + 3 = 3 (x-1) ^ 2 > 0, f (x) in x > 1 or X

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