How do you solve the inequality #x^2+3x-28<0#?
1 Answer
Apr 4, 2018
Explanation:
So, the inequality is
Now. the left hand side vanishes for
If
Thus the inequality is only satisfied when
where the facor
You can see this in the graph below
graph{x^2+3x-28 [-10, 10, -40, 40]}