(2x-8)(2x-6)

When we expand the expression (2x-8)(2x-6), we use the distributive property:

First, we multiply the first terms in each parentheses: 2x * 2x = 4x^2.
Then, we multiply the outer terms: 2x * -6 = -12x.
Next, we multiply the inner terms: -8 * 2x = -16x.
Finally, we multiply the last terms in each parentheses: -8 * -6 = 48.

Combining like terms, we have:

4x^2 - 12x - 16x + 48.

Simplifying further, we have the expression:

4x^2 - 28x + 48.