How do you simplify (7m^2 + 9m + 3) - (3m^2 + 8m + 2)?

1 Answer
Jun 12, 2015

(7m^2 + 9m + 3) - (3m^2 + 8m + 2)=4m^2+m+1

Explanation:

(7m^2 + 9m + 3) - (3m^2 + 8m + 2)=4m^2+m+1
This surely isn't a perfect square trinomial, so you can try to simplify it with the Delta formula:
Delta_m=1-4*4=-15<0
So this trinomial is not simplifiable anymore in the real number system.