OK -facts time, bitches.
1. You absolutely can upgrade laptop CPU's.
2. The majority of laptops do indeed have soldered/unmovable CPU's.
3. Although removable, laptop CPU's are NOT compatible or interchangeable with desktop CPU's (VERY small exception).
4. None of the above is debatable or open to interpretation.
5. If you did not know ALL of the above, you should not be giving "advice" in this section. Plain and simple.
Now @
FullmetalPride - Those CPU's you listed are for desktop CPU's. I would be very surprised if your laptop had a 1155 or 1156 socket. While they are upgradeable, laptop chipsets are VERY particular about CPU's you can use. Simply fitting into the socket is not enough, it needs to be completely compatible with the architecture - most only work with a very small range of processors.
If you do not have a full list of compatible CPU's from the manufacturer of your motherboard, you should not be purchasing anything. Because there is a very good chance it will not work. Please also note: swapping CPU's on laptops is NOT as simple as a desktop and in most cases you will also need to flash/upgrade the BIOS.