SOLUTION: Factor completely: 12x^3-3xy^2 Is it 3x(4x-y)(x+y)?

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Question 40956: Factor completely: 12x^3-3xy^2
Is it 3x(4x-y)(x+y)?
Found 2 solutions by stanbon, fractalier:
Answer by stanbon(48569) About Me  (Show Source):
You can put this solution on YOUR website!
No, it is 3x(2x+y)(2x-y)
Cheers,
Stan H.

Answer by fractalier(2101) About Me  (Show Source):
You can put this solution on YOUR website!
Same procedure as before
12x^3 - 3xy^2 =
3x(4x^2 - y^2) =
3x(2x - y)(2x + y)
Please correct your work...