Calculate the difference of 100 squared and 99 squared.

The difference of squares formula is used to evaluate the expression 100^2 - 99^2, resulting in 199.

We are asked to evaluate

We can calculate

and

directly:

Alternatively, we can use the difference of squares formula:

.
In our case,

and

Final Answer: The final answer is

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Calculate the difference of 100 squared and 99 squared.

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