How to "run" Blender 2.8 in 18.04

Question

In the install instructions, they say "run" the Blender executable for v 2.8. While I have the executable in the extracted folder, I don't know which command will "run" it. I tried run blender within the folder without success. Would be great if someone can help me out.

Edit 1 :

Edit 2:

$ ./blender
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   167
    request code: 152
    minor code:   34
    error text:   GLXBadFBConfig
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
Received X11 Error:
    error code:   8
    request code: 152
    minor code:   34
    error text:   BadMatch (invalid parameter attributes)
found bundled python: /home/dell/Downloads/blender-2.80-linux-glibc217-x86_64/2.80/python