2 square numbers subtracted from each other to make 8 = -6
As a product of its prime factors: 5*73 = 365
9 and 36
25 and 81
3 and 5
They can be: 16 -4 = 12
They are: 9+81 = 90
They are: 49+16 = 65
They are: 4*4 = 16
25 and 144
9 and 1
(3 + √73)/2 ≈ 5.772 (3 − √73)/2 ≈ -2.772