-1" OR 5*5=26 --

It looks like a snippet that resembles an SQL injection payload: -1" OR 55=26 --. The -- at the end is a SQL comment marker, so the rest of the line would be ignored in many SQL parsers. The inner expression 55=26 is false (since 25 ≠ 26).

Two safe, exam-oriented takes:

• If you’re evaluating purely in boolean logic (not tied to SQL), 5*5=26 is false. The left part -1" is not a valid boolean in most languages, so as a whole it’s not a well-formed boolean expression. If you treat -1 as a truthy value (as in many programming languages where nonzero numbers are true), then true OR false would be true.

• If you’re thinking in SQL terms: this is an injection attempt where the attacker tries to terminate a string literal with ", then OR in a tautology, and comment out the rest with --. Since 5*5=26 is false, the impact depends on the surrounding query. In practice, such payloads illustrate why you must use parameterized queries and proper input handling.

If you want, tell me the exact exam topic (boolean logic, SQL injection defense, or something else), and I’ll tailor a short practice question and solution.