## Simplifying (x+10)(x-10)

The expression (x+10)(x-10) represents the product of two binomials. To simplify this expression, we can use the **difference of squares** pattern.

### The Difference of Squares Pattern

The difference of squares pattern states that:
**(a + b)(a - b) = a² - b²**

### Applying the Pattern

In our case, a = x and b = 10. Applying the pattern, we get:

(x + 10)(x - 10) = x² - 10²

### Final Answer

Therefore, the simplified form of (x + 10)(x - 10) is **x² - 100**.