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,
5 + 3 – 2 = 48;
4 – 3 + 3 = 28.
Then,
5 + 2 + 3 – 4 + 4 – 3 = ?