What 2 square numbers subtract to make 291?

What two square numbers subtract to make 291? In other words, when you subtract one square number from another square number, the answer is 291. 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 = 291

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

50² - 47² = 291

50² is 2500 and 47² is 2209, therefore the answer to the question "What 2 square numbers subtract to make 291?" is 2500 and 2209 as illustrated below:

2500 - 2209 = 291

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 291. Below we list alternate solutions if available.

21316 - 21025 = 291

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