Graph each function, considering the domain, critical points, symmetry, regions where the function is increasing or decreasing, inflection points, regions where the function is concave up or concave down, intercepts where possible, and asymptotes where applicable.

$54.f(x)=6x^3-x^4$

$56.f(x)=x+\frac{8}{x}$

$58.f(x)=\frac{-4x}{1+2x}$

$60.f(x)=x^2{e}^{2x}$

$62.f(x)=x^{2}lnx$