2 explained why do we do these terminal commands, and how packages work
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Since elementary OS is based on Ubuntu 14.04 LTS, packages available to download (either from apt-get or Software Center) are likely outdated. That means that, to get the latest version of a program, you should add a PPA repository to your system. To do this, search for "X PPA" where "X" is the name of your application. In this case, you should search for "LibreOffice PPA", and it will give you a result, usually to Launchpad, from where you can add a PPA like ppa:libreoffice/ppa to your system:

Open a terminal and run

sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice

LibreOffice should be installed

Remember to mark as answer if this works :)

Open a terminal and run

sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice

LibreOffice should be installed

Remember to mark as answer if this works :)

Since elementary OS is based on Ubuntu 14.04 LTS, packages available to download (either from apt-get or Software Center) are likely outdated. That means that, to get the latest version of a program, you should add a PPA repository to your system. To do this, search for "X PPA" where "X" is the name of your application. In this case, you should search for "LibreOffice PPA", and it will give you a result, usually to Launchpad, from where you can add a PPA like ppa:libreoffice/ppa to your system:

Open a terminal and run

sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice

LibreOffice should be installed

Remember to mark as answer if this works :)

1
source | link

Open a terminal and run

sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice

LibreOffice should be installed

Remember to mark as answer if this works :)