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Multiply polynomial $ \, \color{blue}{ x^4-x^3+3x^2-4x+2 } \, $ by $ \, \color{orangered}{ x^4+2x^3-4x^2+2x+3 }$.
Answer
$$ \left( \color{blue}{x^4-x^3+3x^2-4x+2} \right) \cdot \left( \color{orangered}{x^4+2x^3-4x^2+2x+3} \right) = x^8+x^7-3x^6+8x^5-17x^4+23x^3-7x^2-8x+6 $$
Explanation
Explanation is too long to display.