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Multiply polynomial $ \, \color{blue}{ s^4+17s^3+99s^2+223s+140 } \, $ by $ \, \color{orangered}{ s^5+41s^4+613s^3+3975s^2+9450s }$.
Answer
$$ \left( \color{blue}{s^4+17s^3+99s^2+223s+140} \right) \cdot \left( \color{orangered}{s^5+41s^4+613s^3+3975s^2+9450s} \right) = s^9+58s^8+1409s^7+18678s^6+146995s^5+696614s^4+1907795s^3+2663850s^2+1323000s $$
Explanation
Explanation is too long to display.