Extraneous Solutions to Radical Equations Extraneous Solutions
to Radical Equations Extraneous Solutions to Radical Equations ⇐
Use this menu to view and help create subtitles for this video
in many different languages. You'll probably want to hide
YouTube's captions if using these subtitles. - In this video,
we're going to start having some experience - solving radical
equations or equations that involve square - roots or maybe even
higher-power roots, but we're - going to also try to understand
an interesting - phenomena that occurs when we do these
equations. - Let me show you what I'm talking about. - Let's say
I have the equation the square root of x is equal - to 2 times x
minus 6. - Now, one of the things you're going to see whenever
we do - these radical equations is we want to isolate at least
one - of the radicals. - There's only one of them in this
equation. - And when you isolate one of the radicals on one side
of - the equation, this one starts off like that, I have the -
square root of x isolate