# How do you simplify 2ab(3)(-7)?

Mar 14, 2017

See the entire simplification process below:

#### Explanation:

First, rewrite this expression as:

$2 a b \left(3 \times - 7\right) = 2 a b \left(- 21\right)$

Then, rewrite it again as:

$\left(- 21 \times 2\right) a b = - 42 a b$