In this lesson, we review how to solve equations containing radical expressions. The video provides three sample equations to practice. First, we isolate one of the radical expressions, then we square both sides to eliminate the square root. We continue to isolate the radical expression until we are left with an equation that we can solve. The video also emphasizes that the square root of a number cannot be negative, so if we end up with a negative result, the solution is the null set.
More practice solving radical equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com