6. (6 points) Determine the partial fraction expansion of: $$X(s) = \frac{-3s^2 + 3s + 42}{s(s^2 + 5s - 14)}$$ (2 points) Determine the location of the poles of the system, and if it is a stable system or not.
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Step 1: First, factor the denominator: $$s(s^2 + 5s - 14) = s(s+7)(s-2)$$ So, we can write the partial fraction expansion as: $$X(s) = \frac{A}{s} + \frac{B}{s+7} + \frac{C}{s-2}$$ Show more…
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