10. (2 credit Let C be the counterclockwise path starting at the point (-2, 0) that moves along the x-axis to the point (2, 0), then along the semicircle y = V4 - x2 to the starting point. Use Green's Theorem to compute the integral p xdx + (x3 + 3xy?) dy Hint: If you end up with a very messy integral, you can always reconsider your choice of coordinate system