### Instruction: What is the value of $\displaystyle\frac{235^2-221^2}{14}$?### Response: So we're trying to find the value of $\displaystyle\frac{235^2-221^2}{14}$.
Right, let's start by simplifying the numerator.
Ok, so $235^2$ is $55225$.
And $221^2$ is $48441$.
So $55225-48441$ is $6784$.
Now let's divide that by 14.
We get $484$.