x2-144

The expression \( x^2 - 144 \) can be factored using the difference of squares formula, which states that \( a^2 - b^2 = (a - b)(a + b) \).

Here, we can recognize that \( x^2 - 144 \) is a difference of squares, where:

• \( a = x \)
• \( b = 12 \) (because \( 12^2 = 144 \))

Using the difference of squares formula, we find:

\[ x^2 - 144 = (x - 12)(x + 12) \]

So the factored form of \( x^2 - 144 \) is \( (x - 12)(x + 12) \).