A graphical representation of the intersections of the two functions would be sufficient in my opinion, but if you want to be slightly more rigorous:
When x = -1, 0, 1 then both and = 0
In the interval (-1,0), and so the two functions cannot be equal.
In the interval (0,1), "" < 0 and "" > 0 so the two functions cannot be equal.
Hence the only intersection points are -1, 0, 1. then set up your integrals.
one will be from -1 to 0 with and the other will be from 0 to 1 with . After solving both, add them to get your total area.