SOLUTION: I was wondering the idea of this kind of equation? i can't seem to wrap my head around it. The root symbol or whatever it is, is throwing me off

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Question 764114: I was wondering the idea of this kind of equation? i can't seem to wrap my head around it. The root symbol or whatever it is, is throwing me off - since it isn't just simply written as x^2 or something. Could you maybe give me a somewhat simple example equation and label steps please?
Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
I was wondering the idea of this kind of equation? i can't seem to wrap my head around it.
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What kind of equation?

Answer by MathLover1(20849) (Show Source):
You can put this solution on YOUR website!
if you have equation like this:
...to solve for you need square both sides first in order to get rid of square root
......now we can cancel root sign and power of on right side

...now add to both sides

....now, we can use quadratic formula to solve for
...as you can see, , , and

solutions:

or

this means is equal to if and , and graphs intersecting at these points
now, we can see it on a graph:

SOLUTION: I was wondering the idea of this kind of equation? i can't seem to wrap my head around it. The root symbol or whatever it is, is throwing me off - since it isn't just simply writte