1. Since (X - 2)(2X + 1) is less than 0, therefore it's asking for part of the equation where the equation is less than 0.
The two values which make euation = 0 are:
X = 2 & X = -1/2
Since you need the parts where the euation is negative, you would take:
-1/2<X< 2 because only the values in...