It seems like your expression got repeated. Let's simplify the expression \(3x^2 - 6x - 2025\).

First, look for any common factors in the coefficients:

1. The coefficients of the expression are 3, -6, and -2025.
2. All of these numbers have a common factor of 3.

Let's factor out the 3:

\[ 3(x^2 - 2x - 675). \]

Now we need to factor the quadratic \(x^2 - 2x - 675\).

To factor it, we need to find two numbers whose product is -675 and sum is -2. Let's search for such a pair:

The numbers \(-27\) and \(25\) multiply to \(-675\) (since \(-27 \times 25 = -675\)) and add up to \(-2\) (since \(-27 + 25 = -2\)).

Thus, we can factor the quadratic as:

\[ x^2 - 2x - 675 = (x - 27)(x + 25). \]

Therefore, the fully factored form of the original expression is:

\[ 3(x - 27)(x + 25). \]