Problem $1.$ Conservative forces

Which $of$ the two $2D$ forces vec$(F{)}^A(x,y)or$ vec$(F{)}^B(x,y)$ given below $is$ conservative? The $x$

and $y$ components $of$ the force vec$(F{)}^A(x,y)$ are given $by$

$F_x^A(x,y)=-6x-ycos(xy)-14xy$

$F_y^A(x,y)=-5-xcos(xy)-7x^2$

and the $x$ and $y$ components $of$ the force vec$(F{)}^B(x,y)$ are given $by$

$F_x^B(x,y)=-6x-ycos(xy)-12xy$

$F_y^B(x,y)=-5-xcos(xy)-7x^2$

Write the potential $U(x,y)$ for the conservative one?