Respuesta :

[tex]\frac{2x^4}{x+5}\colon\frac{6x^2}{x-4}=\frac{2x^4}{x+5}\cdot\frac{x-4}{6x^2}=\frac{2x^4}{6x^2}\cdot\frac{x-4}{x+5}=\frac{x^2(x-4)}{3(x+5)}[/tex]