How to convert from Laplace Domain to Time Domain? I want to convert the following equation from Laplace domain to continuous time domain:

$F(s) = \frac{-2 m k v R}{2 m R s^{2} + m k s + 2 k R}$

m, k, v, R are all constants.

If I can factor or put this into partial fractions, I can use the table here to convert: https://lpsa.swarthmore.edu/LaplaceZTable/LaplaceZFuncTable.html

eg. 

$ \frac{1}{s+a} = e^{-at}$

But I don't know how to break it down into that form. Is it doable? If so, how?

I have learned how to convert Laplace into the z-domain but I have found some problems with that. In particular, I need continuous time equations to set up the [n-1] and [n-2] etc. samples for the initial run or I won't get useful outputs.
As per: https://math.stackexchange.com/questions/3485053/how-to-get-partial-fractions-for-this-equation-to-go-from-laplace-to-time-doma

$F(s) = \frac{-2 m k v R}{2mR\left(s-\frac 1{4mR}\left(-mk-\sqrt{m^2k^2-16mkR^2}\right)\right)\left(s-\frac 1{4mR}\left(-mk+\sqrt{m^2k^2-16mkR^2}\right)\right)}$

$F(s) = \frac{-2 m k v R}{2mR}*\frac{1}{\left(s-\frac 1{4mR}\left(-mk-\sqrt{m^2k^2-16mkR^2}\right)\right)\left(s-\frac 1{4mR}\left(-mk+\sqrt{m^2k^2-16mkR^2}\right)\right)}$

$F(s) = - k v *\frac{1}{\left(s-\frac 1{4mR}\left(-mk-\sqrt{m^2k^2-16mkR^2}\right)\right)\left(s-\frac 1{4mR}\left(-mk+\sqrt{m^2k^2-16mkR^2}\right)\right)}$

Then I can use:

$\frac{1}{(s+a)(s+b)} = \frac{e^{-at}-e^{-bt}}{b-a}$

And that should do it!