questions about damage.

[alpha20100]

i have a very simple question but i can't seem to find it anywhere.
i am new to pathfinder and i was wondering how adding damage to single attacks that roll more than one die.
for example. if i have a strength modifier of +6, and use a magical weapon that has a base of 2d10. do i add my +6 to both rolls of the d10? or do i roll both d10 and then add my strength modifier?

[Covent]

If you are using any weapon it is always (Weapon Dice) + (Strength[1.5 if two hand][0.5 if offhand without double slice]) + (Other damage buffs, such as bard song or weapon enhancement bonus to damage*)

*Note that masterwork weapons have a damage bonus only to hit not to damage.

So in your case it would be 2d10 + 6, not 2d10 + 12.