Question

Find the sum and express it in simplest form.

(7t³ + 3t - 1) + (-9t³ + 2t)
DO
Enter the correct answer.

Answer 1

-2
`t^(3)` + 5t - 1

Explanation:

(7
`t^(3)` + 3t - 1) + (-9
`t^(3)` + 2t)

7
`t^(3)` - 9
`t^(3)` + 3t + 2t - 1 Combine like terms

-2
`t^(3)` + 5t - 1

Like terms have to have the same variable and the same exponents to be like terms.