$$4yx\sqrt[1]{6xy^{2}+4y^{3}x+2x^{4}y}$$
$8\left(x^{3}+2y^{2}+3y\right)\left(xy\right)^{2}$
$8xy^{2}\left(5x^{3}+4y^{2}+6y\right)$
