# How do you evaluate (- 4+ 4y + 3u ) ( - 9)?

You expand this bye multiplying each term inside the brackets by the $- 9$
$\left(- 4 + 4 y + 3 u\right) \left(- 9\right) = - 4 \times \left(- 9\right) + 4 y \times \left(- 9\right) + 3 u \times \left(- 9\right)$
$= 36 - 36 y - 27 u$