Question

How do you simplify `(3+k)(-4)-5k`?

Answer 1

`= -12 - 9k`

Explanation:

`(3 + k ) color(green)(( -4)) - 5k`

`= (3) * color(green)((-4)) + (k ) * color(green)(( -4)) - 5k`

`= -12 - 4k - 5k`

Grouping like terms:

`= -12 + (- 4k - 5k )`

`= -12 - 9k`