Question 523917
FOIL= first, outer, inner, last
First: 4m*5m
Outer: 4m*3
Inner: 1*5m
Last: 1*(-3)
You get 20m^2-12m+5m-3 (combine like terms (-12m+5m)
Final answer: 20m^2-7m-3
Does that make sense?
Best of luck to you! :-)