What 2 square numbers subtract to make 3945?

What two square numbers subtract to make 3945? In other words, when you subtract one square number from another square number, the answer is 3945. What are the two square numbers?

First, note that a square number is what you get when you multiply a number by itself, which means that the square root of a square number will equal a whole number. Thus, this is what we are solving:

A² - B² = 3945

We solved the equation above and found this to be true:

139² - 124² = 3945

139² is 19321 and 124² is 15376, therefore the answer to the question "What 2 square numbers subtract to make 3945?" is 19321 and 15376 as illustrated below:

19321 - 15376 = 3945

Note that there may be more than one solution to a problem like this. Above, we found the lowest combination of square numbers that subtract to 3945. Below we list alternate solutions if available.

157609 - 153664 = 3945
434281 - 430336 = 3945

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