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Multiply polynomial $ \, \color{blue}{ 6x^4+4x^3+2x^2+x-2 } \, $ by $ \, \color{orangered}{ 3x^2+x-1 }$.
Answer
$$ \left( \color{blue}{6x^4+4x^3+2x^2+x-2} \right) \cdot \left( \color{orangered}{3x^2+x-1} \right) = 18x^6+18x^5+4x^4+x^3-7x^2-3x+2 $$
Explanation
Explanation is too long to display.