# How do you simplify (t ^ { 2} - 5t - 4) + ( 2t ^ { 2} - 7t + 6)?

Jan 20, 2018

$3 {t}^{2} - 12 t + 2$

#### Explanation:

$\left({t}^{2} - 5 t - 4\right) + \left(2 {t}^{2} - 7 t + 6\right)$
is the same as:
${t}^{2} - 5 t - 4 + 2 {t}^{2} - 7 t + 6$
This becomes, once reordered:
${t}^{2} + 2 {t}^{2} - 5 t - 7 t - 4 + 6$
Combine the like terms:
$3 {t}^{2} - 12 t + 2$