Respuesta :

emma1537
Just cross multiple m with 4m and -1 and them 3 with 4m and -1
zacharyivanov

Answer:

4m^2 +11m -3

Explanation:

Multiply using Foil, First (m*4m), Outer (m*-1) Inner (3*4m), then last (3* -1).   Using that you get 4m^2 - m + 12m -3.  Last step is to combine -m and 12m.