LCCDE Classical Method $($Forced Response$)$

From the differential equation what is the Forced Responce Equation of the system:

$\frac{d^{2}y}{d{t}^2}+\frac{dy}{dt}-2y=2t-40cos2t$

Script $$syms x$($t$)$

matA $=$ sym$($zeros$(1,1))$;

matB $=$ sym$($zeros$(1,1))$;

matAns $=$

K$1=$

K$2=$

K$3=$

K$4=$

$\%$ Enter force respose equation with constants here:

yp $=$