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25 and 49.
81 + 16
2000 2000
big cheese
16 -9
Let's denote the two square numbers as x^2 and y^2. The difference between two square numbers can be expressed as (x^2 - y^2), which can be factored into (x + y)(x - y). Since the difference is 80, we have (x + y)(x - y) = 80. The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. By testing out different combinations of these factors, we find that the pair of square numbers that make a difference of 80 is 82^2 and 2^2.
They are: 100-16 = 84
A square number will have one factor pair that consists of the same number (the square root). In the list of factors, that number will be written once.
a square number
It's a square number. Square numbers have a factor pair that is the same number twice. When listed, that number occurs once.
A square number
8464 and 3364