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

1 Answer
Jun 12, 2015

Answer:

#(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.