What 2 square numbers subtract to make 669?

What two square numbers subtract to make 669? In other words, when you subtract one square number from another square number, the answer is 669. 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 = 669

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

113² - 110² = 669

113² is 12769 and 110² is 12100, therefore the answer to the question "What 2 square numbers subtract to make 669?" is 12769 and 12100 as illustrated below:

12769 - 12100 = 669

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 669. Below we list alternate solutions if available.

112225 - 111556 = 669

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