Some signs would have made life easier at this end.
(3x + 9)(x + 9) is a possibility, as is (3x - 9)(x - 9)
Chat with our AI personalities
81.
(3x - 30)(x + 8) can also simplify to 3(x - 10)(x + 8)
3x2-27 is equal to -21.
If you mean: 9x2-36x+16 then it is not a perfect square because its discriminant is greater than zero
-8x + 3x2 - 3