Respuesta :

irspow
3t-3+6t^2+4t+13-8t^2+11t-1   combine like terms...I'll arrange them for clarity

(6t^2-8t^2)+(3t+4t+11t)+(13-3-1)

-2t^2+18t+9 


theresaanderson
This problem is just a matter of combining like terms. Your answer should be:

-2t^2 + 18t + 9