Answer: <5, 6>
Explanation:
The addition of two vectors a=<x, y>, b=<x2, y2> can be easily done by simply adding the horizontal components of the two vectors (x+x2) and the two vertical components (y+y2), forming a new vector as a result:
c=<(x+x2), (y+y2)>.
In this case:
u + v = <-3, 4> + <8, 2>
u + v = <-3+8, 4+2>
u + v = <5, 6>