SOLUTION: solve 8X^2=800. Is the answer X=5(radical)2/2 or X=5+or-(radical)2/2???

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Question 304402: solve 8X^2=800. Is the answer X=5(radical)2/2 or X=5+or-(radical)2/2???
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
solve 8X^2=800
Divide both sides by 8 to get:
x^2=100
x^2-100 = 0
Factor:
(x-10)(x+10) = 0
x = 10 or x = -10
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cheers,
Stan H.