(4tt-att-2bt+5)-(cttt+2tt-6t+3)=ttt-2t+d ; i need to find what a,b,c, and d are. the variables like tt's mean t squared just so u know.

collect t^2 terms for example

4 t^2 - a t^2 -2 t^2 = 0
divide by t^2
4 - a - 2 = 0
a = 2

then do t^3 terms
then do t terms
then do 5 - 3 = d