684•397-584•397

To solve this equation, you can break it down into two separate calculations and then subtract the results.

First, calculate 684 multiplied by 397: 684 x 397 = 271,548

Next, calculate 584 multiplied by 397: 584 x 397 = 231,848

Finally, subtract the second result from the first: 271,548 - 231,848 = 39,700

Therefore, the result of 684•397 - 584•397 is 39,700.