Answer :
Sorry for the hand writing. But you want to factor out a 4y^2 which will result in (9y^2-1). Then you will factor out the equation in parentheses to (3y-1)(3y+1). Don’t forget to put the 4y^2 out front!

Answer:
4(3x^2-y) (3x^2+y)
Step-by-step explanation:
See image below:)
