What 2 square numbers make 8405?

"What 2 square numbers make 8405?" means "What 2 square numbers added together equal 8405?" In other words, "What two square numbers when added together have a sum of 8405?"

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, we are solving A and B in this equation where both A and B are square numbers.

A + B = 8405

We found the following combinations of two square numbers that when added together equal 8405:

484 + 7921 = 8405
1681 + 6724 = 8405
3364 + 5041 = 8405

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What 2 square numbers make 8406?
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