How do you multiply (4m - 2) ( - 8m - 4)?

Apr 26, 2018

$- 32 {m}^{2} + 8$

Explanation:

$\left(4 m - 2\right) \left(- 8 m - 4\right)$

First distribute $4 m$ to $- 8 m$ and then to $- 4$ after that you need to distribute $- 8 m$ and $- 4$ with $- 2$. Once you multiply everything then lastly combine every thing and you will find the answer of $- 32 {m}^{2} + 8$.

$\left(4 m - 2\right) \left(- 8 m - 4\right)$

$- 32 {m}^{2} - 16 m + 16 m + 8$

$= - 32 {m}^{2} + 8$