Solving Radical Equations

Ms. Smith's Math Tutorials
*Edit Note: I know it seems like the video is going to end at 8:10 and then it keeps going. I had originally intended it to end there, but realized later I left out some critical types of problems you may see. Sorry for the false ending!
You Try Answer:
x=1, solution checks as correct

[@MarciaArleneDebra]

The square root of 9 could be +3 or -3: -3^2 or 3^2 gives 9

[@ms.smithsmathtutorials]

While the answer is No Solution, I did not do a good job of explaining why the answer is No Solution with my check in this video. The domain of the graph of square root of x begins at x=0 and extends to the right for infinity but does not touch where x is -3