Question

what is (8t²-10t+2)+(8t+13)

Answer 1

answer: 8t^2 -2t+15

-10t+8t= -2t
2+13= 15 

Answer 2

You would have 8t^2 - 2t + 15

You cannot combine the 8t^2 with the other ones because they are not squared. Other than that, you can combine all of your other like terms.

Hope this helped