#### Matthew Ko

##### New member

- Joined
- Aug 14, 2019

- Messages
- 10

I'm a junior and I am working on a pre-calculus assignment.

One of the questions are phrased as the following:

Explain why the solutions to (a) radical equations and (b) rational equations must be checked to see if they are extraneous.

I could postulate as far as the fact that they both have inverses which aren't functions; I believe it has to do something with that, but I'm not sure. Could anyone help?

Thank you!

One of the questions are phrased as the following:

Explain why the solutions to (a) radical equations and (b) rational equations must be checked to see if they are extraneous.

I could postulate as far as the fact that they both have inverses which aren't functions; I believe it has to do something with that, but I'm not sure. Could anyone help?

Thank you!

Last edited: