Quadratic inequalities

3 videos
Learn how to solve inequalities that contain quadratic expressions. For instance, solve x^2+3x+2>0.

How to solve a quadratic inequality algebraically (example)

VIDEO 7:54 minutes
Sal solves -x(2x-14)≥24.

How to solve a quadratic inequality graphically (example)

VIDEO 9:51 minutes
Sal solves a few quadratic inequalities by moving all terms to one side of the inequality and graphing the resulting expression.