Question

How do you combine like terms in `(- 5t ^ { 2} + 4t - 3) + ( 7t ^ { 2} + t + 6)`?

Answer 1

`2t^2+5t+3`

Explanation:

Collect up like terms for this expression.

Those brackets do not mean anything in this case since the only operations are subtraction and multiplication.

`-5t^2+7t^2+4t+t-3+6`
`=2t^2+5t+3`

Always perform the operations when they are the same, do not collect up like terms when they are not alike.
e.g
`4t^2+t`
You cannot add them together since the pronumeral isn't the same.