Question

Is this correct?
Find the product.

-3z(z^3-3z^2+6)
=-3z(z^3)+(-3z)(-3z^2)-3z(6)
=-3z^4+9z^3-18z
=6z-18z
=-12z

Answer 1

-3z(z^3-3z^2+6)

=-3z(z^3)+(-3z)(-3z^2)-3z(6) ... Correct

=-3z^4+9z^3-18z .... Correct

=6z-18z ... Incorrect. There are no like terms to combine.

=-12z ... Again there are no like terms to combine.

Answer 2

so then the answer would be 6z-18z ?

Answer 3

no

Answer 4

-3z^4+9z^3-18z is the correct answer

Answer 5

everything after that is incorrect

Answer 6

okay, thank you!

Answer 7

np

Answer 8

no, mellaflamme86
like jim_thompson5910 says

\[-3z(z^3-3z^2+6)=...=-3z^4+9z^3-18z \]
and you cannot simplify further