Chapter 6.11, Problem 9P

${\displaystyle \int {\displaystyle \int }}V\cdot nd\sigma$ over the entire surface of the volume in the first octant bounded by $x^2+y^2+z^2=16$ and the coordinate planes, where $V=\left(x+x^2-y^2\right)i+(2xyz-2xy)j-x{z}^{2}k$.