by symmetry it should be 25
If 51 x 51 = 26 01 52 x 52 = 27 04 53 x 53 = 28 09 54 x 54 = 29 16 55 x 55 = 30 25 56 x 56 = 31 36 then 57 x 57 = ?? ??
If 4 + 1 = 5 2 + 3 = 15 3 + 4 = 28 2 + 5 = 35 then 6 + 3 = ?
