Khan Academy on a Stick : Extraneous Solutions to Radical Equations

Khan Academy on a Stick

Radical equations

Solving Radical Equations
Extraneous Solutions to Radical Equations
Solving Radical Equations 1
Solving Radical Equations 2
Solving Radical Equations 3
Applying Radical Equations 1
Applying Radical Equations 2
Applying Radical Equations 3

If the above player doesn't work, you can try this direct link.