SOLUTION: Can you help me solve (((3x^4-28x^2+9=0)))

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Question 33899: Can you help me solve (((3x^4-28x^2+9=0)))
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(3x^2-1)(x^2-9)=0
3x^2-1=0 or x^2-9=0
x^2=(1/3) or x=3 or x=-3
x=sqrt3/3 or x=-sqrt3/3 or x=3 or x=-3
Cheers,
Stan H.