If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Radical equations

8 videos
2 skills
You're enjoying algebra and equations, but you miss radicals. Wouldn't it be unbelievably awesome if you could solve equations with radicals in them. Well, your dreams can come true. In this tutorial, we work through a bunch of examples to help you understand how to solve radical equations. As always, pause the videos and try to solve the example before Sal does.

Solving radical equations

VIDEO 3:11 minutes
Solving Radical Equations

Extraneous solutions to radical equations

VIDEO 11:10 minutes
Extraneous Solutions to Radical Equations

Solving radical equations 1

VIDEO 2:15 minutes
Solving Radical Equations 1

Solving radical equations 2

VIDEO 3:34 minutes
Solving Radical Equations 2

Solving radical equations 3

VIDEO 4:22 minutes
Solving Radical Equations 3

Applying radical equations 1

VIDEO 5:24 minutes
Applying Radical Equations 1

Applying radical equations 2

VIDEO 6:55 minutes
Applying Radical Equations 2

Applying radical equations 3

VIDEO 3:19 minutes
Applying Radical Equations 3

Radical equations

PRACTICE PROBLEMS
Solve equations containing square roots of variables.