How do you simplify 8(-b-4)?

Jan 18, 2017

$- 8 b - 32$

Explanation:

Each term in the bracket is multiplied by the 8. This is called the $\textcolor{b l u e}{\text{distributive law}}$

$\Rightarrow \textcolor{red}{8} \left(- b - 4\right)$

$= \left(\textcolor{red}{8} \times - b\right) + \left(\textcolor{red}{8} \times - 4\right)$

$= - 8 b + \left(- 32\right) = - 8 b - 32$