Are hexadecimal numbers ever negative?

Question

Are hexadecimal numbers ever negative? If yes then how?
For binary you would have signed and unsigned.
How would one represent them in Hex? I need this

Answer 1

On one hand, why not - it's just a positional numeric system, like decimal.

On the other hand, they normally use hex notation to deduce the underlying bit pattern - and that is much more straightforward if the number is interpreted as unsigned.

So the answer is - it's possible, mathematically correct and internally consistent, but defeats the most common purpose of hex notation.