To simplify the expression, we need to find a common denominator for all the terms.

The common denominator for x and x-2 is x(x-2).

So, the expression becomes:

X-4/x² - (2x+1)/(x(x-2)) - 1/x

To combine the terms, we need to multiply each term by the appropriate factor to get the common denominator.

For the first term, we multiply by (x-2)/(x-2):

(x-4)(x-2)/(x²(x-2))

For the second term, we multiply by x/x:

(2x+1)(x)/(x(x-2))

For the third term, we multiply by (x-2)/(x-2):

1(x-2)/(x(x-2))

Now, we can combine the terms:

(x-4)(x-2) - (2x+1)(x) - 1(x-2) / (x²(x-2))

Expanding and simplifying:

(x² - 6x + 8) - (2x² + x) - (x - 2) / (x²(x-2))

Combining like terms:

x² - 6x + 8 - 2x² - x - x + 2 / (x²(x-2))

Simplifying further:

(-x² - 8x + 10) / (x²(x-2))

Therefore, the simplified expression is (-x² - 8x + 10) / (x²(x-2)).