Help how can i uninstall softwares

[uninstall softwares]

Can someone help me on how can i unstall this softwares like line, hangouts, google play movies etc. Instead of having a 4gb memory i only have 2gb because of this softwares.. btw my cellphone is samsung galaxy core 2

 

[Mr. Lucky]

It sounds like you are referring to pre-installed Google apps. These are /system apps, and cannot be removed without rooting your phone. Even with root, some of these apps should not be removed, as they affect other core functionality.
Ref: http://androidforums.com/threads/galaxy-core-2-all-things-root-guide.857526/

 

[Hadron]

Also the pre-installed apps live in the /system partition, so you wouldn't actually gain space by removing them (though uninstalling updates does free space, so doing that then disabling is safer than removing and does the same job for most purposes).

Manufacturers always quote the total installed storage, and this is always less than the real usable space. To be honest 2GB user space is about what I'd expect from a 4GB device - that's a much more compact /system partition than higher-end Samsungs have (e.g. a 16GB Galaxy S4 or S5 will have less than 10GB available to the user).