First, we find the Laplace Transform of each term in the equation:

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We multiply throughout by s and use the fact that i(0) = 0 to obtain:

$s^{2}I+2sI+5I=1$

Solving for I and completing the square on the denominator:

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Taking the inverse Laplace transform to give us the current as a function of time:

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The graph of i(t):

9_lap_invlaptrans_intDE_18pt__10.png