Answer :
12y^2 - 27 =
3(4y^2 - 9) =
Now inside the parentheses is the sum of 2 squares so we factor
3 (2y + 3)(2y - 3)
That is as far as we can factor it.
3(4y^2 - 9) =
Now inside the parentheses is the sum of 2 squares so we factor
3 (2y + 3)(2y - 3)
That is as far as we can factor it.