# How do you solve 3t ( t + 2) - 3t^{2) for t=19?

Sep 18, 2016

$= 114$

#### Explanation:

$3 t \left(t + 2\right) - 3 {t}^{2}$

$= 3 {t}^{2} + 6 t - 3 {t}^{2}$

$= 6 t$

$= 6 \times 19$

$= 114$