Find the second-order partial derivative fxyf_{xy}fxy for f(x,y)=x3y2+5xf(x, y) = x^3 y^2 + 5xf(x,y)=x3y2+5x.
6xy6xy6xy
6x2y6x^2y6x2y
3x2y23x^2y^23x2y2
2x3y2x^3y2x3y