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
Yes. For example you'd have the following representations in signed 32-bit binary and hex:
Decimal: 1
Binary: 00000000 00000000 00000000 00000001
Hex: 00 00 00 01
Decimal: -1
Binary: 11111111 11111111 11111111 11111111
Hex: FF FF FF FF
Decimal: -2
Binary: 11111111 11111111 11111111 11111110
Hex: FF FF FF FE
As you can see, the Hex representation of negative numbers is directly related to the binary representation.