Question

How do you simplify `4(z+2)`?

Answer 1

`4z+8`

Explanation:

Each term inside the bracket must be multiplied by 4. This is known as the `color(blue)"distributive law"`

`rArrcolor(red)(4)(z+2)`

`=(color(red)(4)xxz)+(color(red)(4)xx2)=4z+8`