Question

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

Answer 1

`3t^2-12t+2`

Explanation:

`(t^2-5t-4)+(2t^2-7t+6)`
is the same as:
`t^2-5t-4+2t^2-7t+6`
This becomes, once reordered:
`t^2+2t^2-5t-7t-4+6`
Combine the like terms:
`3t^2-12t+2`