SOLUTION: Im asked to factor completely or state that the polynomial is prime for - 48y ^4 - 3y ^2= I know I fine a gcf which is 3 but where do I go after?

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Question 267078: Im asked to factor completely or state that the polynomial is prime for -
48y ^4 - 3y ^2=
I know I fine a gcf which is 3 but where do I go after?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the gcf is actually 3y^2

3y^2 (16y^2 - 1)

factoring the quadratic (difference of squares) ___ 3y^2 (4y + 1) (4y - 1)