We can rewrite the expression as $\displaystyle\frac{(235+221)(235-221)}{14}$.
Simplifying, we have $\displaystyle\frac{456\cdot14}{14}$.
The $14$ cancels out, leaving us with $\boxed{456}$.
The answer is: 456
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
What is the value of $\displaystyle\frac{235^2-221^2}{14}$?

### Answer:
