What 2 square numbers subtract to make 1668?

What two square numbers subtract to make 1668? In other words, when you subtract one square number from another square number, the answer is 1668. 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 = 1668

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

142² - 136² = 1668

142² is 20164 and 136² is 18496, therefore the answer to the question "What 2 square numbers subtract to make 1668?" is 20164 and 18496 as illustrated below:

20164 - 18496 = 1668

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 1668. Below we list alternate solutions if available.

174724 - 173056 = 1668

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