Respuesta :

Use the Distributive property to solve.
[tex](4n+5m)(3n-m)=(4n*3n)+(4n*-m)+(5m*3n)+(5m*-m)[/tex]
[tex]12n^2-4nm+15mn-5m^2[/tex]
[tex]12n^2+11mn-5m^2[/tex]

Hope that helps!