s2 + 9s + 2 (s – 1)2(s + 3) A. f(t) = et + 3tet – 2e-3t C. f(t) = 2et + 3tet – e-3t 3. f(t) = et + 2te – 3e-3t D. f(t) = 3et + 2tet – e-3t

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