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## Homework Statement

3. Find the partial fraction expansions of the following polynomials

a) 10/[(s^2)(s^2+6s+10)]

## The Attempt at a Solution

I assume i should expan the polynomial in the form A/s^2+B/s+(Cs+D)/(s^2+6s+10) but i stuck at finding B. Maybe my expansion is just wrong .. :(