Advanced equations and inequalities

Learn how to approximate the solution to any kind of equation by graphing; Learn how to solve non-linear inequalities; Learn how to solve systems with more than two equations.

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

Learn how to solve inequalities that contain rational expressions. For instance, solve (x-3)/(x+4)≥2..

Learn how to make the most out of the familiar algebraic techniques in order to solve systems of three equations with three variables.