SOLUTION: Facor: x^4-13x^2+36=0

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Question 33413: Facor: x^4-13x^2+36=0
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(x^2-9)(x^2-4)=0
(x-3)(x+3)(x-2)(x+2)=0
x=3 or -3 or 2 or -2
Cheers,
Stan H.