Multiply polynomial $ \, \color{blue}{ s^6+7s^5+2s^4+9s^3+10s^2+12s+15 } \, $ by $ \, \color{orangered}{ s^6+9s^5+8s^4+9s^3+12s^2+15s+20 }$.
Answer
$$ \left( \color{blue}{s^6+7s^5+2s^4+9s^3+10s^2+12s+15} \right) \cdot \left( \color{orangered}{s^6+9s^5+8s^4+9s^3+12s^2+15s+20} \right) = s^{12}+16s^{11}+73s^{10}+92s^9+182s^8+291s^7+433s^6+599s^5+523s^4+609s^3+560s^2+465s+300 $$
Explanation
Explanation is too long to display.
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