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^
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
To multiply the polynomials 4a(a^2 + 7a + 4), we can use the distributive property.
First, distribute 4a to each term inside the parentheses:
4a * a^2 = 4a^3
4a * 7a = 28a^2
4a * 4 = 16a
The resulting expression is:
4a^3 + 28a^2 + 16a
So, the correct answer is 4a^3 + 28a^2 + 16a.