Question

How do you simplify `-c (3b - 7a)`?

Answer 1

`7ac-3bc`

Explanation:

Each term in the bracket must be multiplied by - c

This is referred to as the `color(blue)"distributive law"`

`rArrcolor(red)(-c)(3b-7a)`

`=(color(red)(-c)xx3b)+(color(red)(-c)xx-7a)`

`=-3bc+7ac=7ac-3bc`