Question

How do you simplify `2h(-7h^2-4h)`?

Answer 1

`-14h^3-8h^2`

Explanation:

To simplify we expand the brackets (distribute ). This is referred to as the `color(blue)"distributive law"`

To do this multiply each 'term' inside the bracket by 2h, remembering the rule of 'signs' when multiplying terms together.

`rArrcolor(red)"2h"(-7h^2-4h)`

`=color(red)"2h"xx(-7h^2)-color(red)"2h"xx4h=-14h^3-8h^2`