SOLUTION: 9+3r^2-12r^4 Factor completely

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Question 203086This question is from textbook intermediate algebra
: 9+3r^2-12r^4
Factor completely This question is from textbook intermediate algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
9+3r^2-12r^4
Factor completely
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= 3(3 + r^2 - 4r^2)
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= 3(3 + 4r2 - 3r^2 - 4r^4)
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= 3[(3+4r^2) - r^2(3+4r^2)]
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= 3[(3+4r^2)(1-r^2)]
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= 3(3+4r^2)(1-r)(1+r)
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Cheers,
Stan H.