Edges visible. How to get smooth look?

[Rostic]

First of all I have to say that I just started learning 3d modeling just a couple of weeks ago, so I'm quite a noob in this

 

I got a problem after I added new edges to get more details but got bad effect when edges became visible when model shaded in ED ModelViewer2.

How I can solve this problem? The only tool that do not increase number of polygons I know  in 3ds max 2016 is to use button "Smooth" in Modelling tab.

 

[razo+r]

If you want a smoother surfrace shading you need to use that smoothing feature. If you want to overall shape to be rounder you need to add more polygons