SOLUTION: I would just like to ask why do we need to extract square root in solving for the value of the variable?

Question 208450: I would just like to ask why do we need to extract square root in solving for the value of the variable?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I would just like to ask why do we need to extract square root in solving for the value of the variable?
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Sometimes you do and sometimes you don't.
If you end up with x^2 = 7 you need to "extract the square root"
if you are solving for x.
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But if you end up with x = 7 you don't have to "extract the square root".
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Cheers,
Stan H.

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