What is the general solution of the linear equation y′+2y=4y' + 2y = 4y′+2y=4?
y=Ce−2t+4y = Ce^{-2t} + 4y=Ce−2t+4
y=Ce2t+2y = Ce^{2t} + 2y=Ce2t+2
y=Ce−2t+2y = Ce^{-2t} + 2y=Ce−2t+2
y=Ce2t+4y = Ce^{2t} + 4y=Ce2t+4