Posted by Cyleste on Wednesday, October 10, 2007 at 6:01pm.
Yes, this might be easier to understand if you think of expressing the perfect square as a product of its square roots. Rearrange to see that the product is a perfect square
if x and y are perfect squares:
x = a * a
y = b * b
x * y = a * a * b * b
x * y = (a * b) * (a * b)
let c = a * b
x * y = c * c
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