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What is the coefficient of $x^2$ in $(x^3 + x^2 + x + 1)(5x^3 - 11x^2 - 8x + 7)$?

 Feb 17, 2024
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Here we do \(x\cdot-8x+1\cdot-11x^2+x^2\cdot7=\boxed{-12x^2}\)

 Feb 17, 2024

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