In this lesson on solving radical equations, the power rule is introduced as a helpful tool. By squaring both sides of an equation, solutions can be found more easily, but it is important to check these solutions in the original equation, as some may not be valid. The process to solve a radical equation is outlined, including steps to isolate the radical, raise both sides to the power of the index, and repeat this process if there are multiple radicals. Finally, all solutions must be checked in the original equation to ensure their validity.
Learn to solve radical equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com