Question

What is `(-7/(m^2+3)) - 3/(m^2+3)`?

Answer 1

Since the denominators are both the same we may add/subtract the numerators:

Explanation:

First a rewrite:

`=(-7)/(m^2+3)+(-3)/(m^2+3)`

`=(-7+(-3))/(m^2+3)=(-7-3)/(m^2+3)=(-10)/(m^2+3)`

`=-10/(m^2+3)`

This looks all a bit roundabout, but it may make the steps clearer.