Answer:
D) 2m
Explanation:
In order to identify the missing terms we need to expand the left side of the equation. So, let's use distributive propierty:
[tex](a+b)(c+d)=ac+ad+bc+bd[/tex]
Therefore:
[tex](m+3)(m-1)=m^2-m+3m-3=m^2+2m-3[/tex]
Hence, the sum of the two missing terms (-m and 3m) in the equation is: 2m
