Question

Which trinomial is the product of the binomials (4n + 5m)(3n – m)?

Answer 1

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

Hope that helps!