Solving radical equations | Exponent expressions and equations | Algebra I | Khan Academy

Solving Radical Equations

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Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

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[spivak]

No, this is bad. It is the simplest case of radical equations. I am here stuck at midnight desperatly searching how to solve more complex radical equations

[convict]

wow this guys amazing, I actually learned a lot more than my teacher taught me in 1 week :D

[fav]

he is at a way slower pace than my teacher, thank youuuu

[afuu]

i feel like i should just quit school, and watch this all day

[israaawada]

Thanks for teaching better than my honors algebra 2 teacher!

[killianco]

THIS GUY IS AMAZING. btw Khan if your reading this I'm the guy who got first in Leinster and Dublin and 12 in Ireland in the mathletes challenge 2014

[ciaranoneill]

Anyone else try to rub the orange on the top right dot off the screen?

[JBlooey]

CALLED IT! Thanks, good sir, for helping!

[yaraalj]

Thank you so much this really helped thank you thank you thank you🙏 💓

[SimmahV]

Yay!!!okay! i get it!!! You explain it better than my teacher, he'd ramble on about somethin and just lose you somewhere within the rambling, so yay!

[loverofjesus]

What do I do if my constant on the left is not a like term with my constant on the right? For example I have -5 as a constant on the left and my equation is equal to x. Would I be able to add -5 to the x?

[antonzubko]

tell me how one of this guy's video is better than a week of lessons with my teacher

[mkaywhatever]

OMG, I actually understood and I would pause the video and think of the answer and would get it right omg I understand math . I'm going to shoot myself.

[luigiking]

now I can say that I´m learning by the internet...

[Crissix]

@cadmusdixon92 lol didn't really answer my question there. I know that a square root is a half-factor, or a power of 1/2. What I don't know is how the word "principal" adds any distinction. That is, what is the difference between a square root and a principal square root?

[kameronhughes]

Get a teaching job in indiana for algebra 4 brownsburg highschool. Puleez better than any teacher

[sourav]

60/5x =60/6x +12/60 sir please solve this

[DevveIoper]

Lost me at the end with the green marking

[Crissix]

What does "principal square root" mean, is it different from a normal square root?

[OMGWTFRAGEFACE]

why the hell cant it be the negative square root??