-1 OR 5*5=25

Do you want a boolean/logical evaluation or a programming/bitwise one? Here are the common interpretations:

• Boolean interpretation (nonzero is true):

  • 5*5 = 25 is true.
  • -1 is treated as true (nonzero).
  • True OR True = True.
  • So the expression evaluates to true.

• Bitwise interpretation (if you meant an integer OR):

  • If you meant (-1) OR 25 (i.e., -1 | 25), the result in two's complement is -1 (because -1 has all bits set, so OR with anything stays -1).

Note: The exact result depends on the language and whether you’re using equality (==) or assignment (=). If you have a specific language in mind, tell me and I’ll tailor the evaluation.