(х+1)(х-1)(х-2)-(х2 - 7х)(х-4)-2-2х

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Expanding each term, we get:

(х+1)(х-1)(х-2) = х^3 - 2х^2 - х + 2
(х^2 - 7х)(х-4) = х^3 - 4х^2 - 7х^2 + 28х
2 + 2х = 2х + 2

Now, we can simplify the given expression by subtracting the second term from the first term and then simplifying further:

(х+1)(х-1)(х-2) - (х^2 - 7х)(х-4) - (2 + 2х)
= (х^3 - 2х^2 - х + 2) - (х^3 - 4х^2 - 7х^2 + 28х) - (2х + 2)
= х^3 - 2х^2 - х + 2 - х^3 + 4х^2 + 7х^2 - 28х - 2х - 2
= -х^2 - 24х - 2

Therefore, the final simplified expression is -х^2 - 24х - 2.