What 2 square numbers make 689?

"What 2 square numbers make 689?" means "What 2 square numbers added together equal 689?" In other words, "What two square numbers when added together have a sum of 689?"

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 = 689

We found the following combinations of two square numbers that when added together equal 689:

64 + 625 = 689
289 + 400 = 689

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