Respuesta :

The simplified version of this is 48/2x^2+13x-45.
[tex] \boxed{\frac{4}{x+9} \div \frac{2x-5}{12}} [/tex]

[tex] \boxed{\frac{4}{x+9} \times \frac{12}{12x-5} }[/tex]

[tex]\boxed{\boxed{ \frac{48}{(x+9)(12x-5)}}}[/tex]