Solve the inequality (3x + 1)(x – 1)(2x + 3) ≤ 0.
Hint
The roots are , and x = 1. Be sure to check every region.
Answer
and
Solve the inequality x2 + 3 > 4x.
The roots are x = 1 and x = 3.
-∞ < x < 1 and 3 < x < ∞
Solve the inequality (x + 4)2(x – 4) ≥ 0.
Make sure to check every region.
x ≥ 4
Solve the inequality x2 + 7x + 4 < 0.
The roots are and
You've been inactive for a while, logging you out in a few seconds...
, and x = 1. Be sure to check every region.
and 
and 
