MapleLaplaceAlgebra.mws
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simplify((6/(s+1)+3*s-12)/(s^3-s^2-4*s+4));
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convert(3*(-2+s^2-3*s)/((s+1)*(s^3-s^2-4*s+4)),parfrac,s);
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convert((6/(s+1)+3*s-12)/(s^3-s^2-4*s+4),parfrac,s);
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