SOLUTION: Solve 9x^2-81=0

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Question 331047: Solve 9x^2-81=0
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve 9x^2-81=0
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9(x^2-9) = 0
Divide by 9 to get:
(x^2-9) = 0
Factor:
(x-3)(x+3) = 0
x = 3 or x = -3
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Cheers,
Stan H.