What is the solution for y^{''}-2y^'-3y=4e^{-t} ?

The solution for y^{''}-2y^'-3y=4e^{-t} is y=c_{1}e^{3t}+c_{2}e^{-t}-e^{-t}t

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y^{''}-2y^'-3y=4e^{-t}

y^{^{''}} - 2 y^{^{'}} - 3 y = 4 e^{- t}

y = c_{1} e^{3 t} + c_{2} e^{- t} - e^{- t} t

Solution steps

y^{''} (t) - 2 y^{'} (t) - 3 y = 4 e^{- t}

Solve linear ODE:

y = c_{1} e^{3 t} + c_{2} e^{- t} - e^{- t} t

y = c_{1} e^{3 t} + c_{2} e^{- t} - e^{- t} t

What is the solution for y^{''}-2y^'-3y=4e^{-t} ?
The solution for y^{''}-2y^'-3y=4e^{-t} is y=c_{1}e^{3t}+c_{2}e^{-t}-e^{-t}t