distribute. (8t-3)(t^2+2t+9

Distribute:

(8t-3)(t^2+2t+9)
=8t(t^2+2t+9)-3(t^2+2t+9)
=8t^3+16t^2+72t -3t^2-6t-27
=8t^3+13t^2+66t-27