Multiply the following polynomials.

7. 4a(a^2 + 7a + 4) (1 point)

4a + 28a^2+ 16a
4a^3 + 28a^2 + 16a
4a^3 + 44a
44a4^

3 answers

12a^3 + 28a^2 + 16a
That's not one of the answers
I apologize, I made a mistake. The correct answer is:

4a^3 + 28a^2 + 16a