Question

Find the following product: 7z(-7z^3+4z^2-9)

Answer 1

-49z^3+28z^2-63z

Answer 2

-49z^4+28z^2-63z

Answer 3

ya it's 4

Answer 4

\[7z(-7z^3 + 4z^2 - 9)\]
\[-49z^4 + 28z^2 - 63z\]

Answer 5

thanks for the help everyone