Question

Factor the given polynomial.

9z^2 +15z +4
Select the correct choice below​ and, if​ necessary, fill in the answer box within your choice.
A. 9z^2 +15z +4=
B.The polynomial is prime.

Answer 1

(3z + 1)(3z + 4)

Explanation:

`9 {z}^(2) + 15z + 4 \\ = 9 {z}^(2) + 3z + 12z+ 4 \\ = 3z(3z + 1) + 4(3z + 1) \\ = (3z + 1)(3z + 4)`