Add 31−−√+31−−√.

Answer 1

To add the expressions 31-√31-√, we simply combine like terms.

31-√+31-√ can be written as (31-√31-√).

Since both terms have the same radical (√31), we can combine them.

(31-√31-√) = 31 + 31 - 2√31

Therefore, 31-√+31-√ can be simplified to 62 - 2√31.