The is a video from free math tutoring that teaches you about in-equations or inequalities and optimization functions of algebraic problems.
If in-equations and optimization sound Greek and Latin to you, you would do best to watch this video. These mathematical concepts are explained in an as easy as possible manner. The presenter clearly demonstrates their importance in practical life by using an example.
This video is best described as an introductory video for newbie's to inequalities and optimization functions in mathematics.