Show that $(({\displaystyle \underset{(-6{)}^{(-2,-5)}}{\overset{\phantom{}}{}}},-5,-8(({\displaystyle \underset{(-6{)}^{(-2),-5}}{\overset{\phantom{}}{}}},-86x^2{y}^{2}dx+4y{x}^{3}dy$ is independent of path:

$\frac{\text{d}\text{e}\text{l}\text{f}}{\text{d}\text{e}\text{l}\text{y}}=12x^{2}y$

$\frac{\text{d}\text{e}\text{l}\text{g}}{\text{d}\text{e}\text{l}\text{x}}=12x^{2}y$

$(({\displaystyle \underset{(-6{)}^{(-2,-5)}}{\overset{\phantom{}}{}}},-5,-8$