(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I'm attempting to find the inverse laplace transform of (5/((2x+3)(4+x^2)))

3. The attempt at a solution

Here's the solution:

http://www.wolframalpha.com/input/?i=inverse+laplace+transform+(5/((2x+3)(4+x^2)))

There's 3 terms in the solution and 2 are trigonometric. But according to laplace tables you

only get a trigonometric term if a variable in one of the terms of the denominator is squared and if you perform PFE there won't be any variables squared so I'm not sure what's going on here.

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# Inverse laplace transform

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