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(4x + 1)(2x^2 + x + 1) = (4x)*(2x^2) + (4x)*(x) + (4x)*(1) + (1)*(2x^2) + (1)*(x) + (1)*(1) = 8x^3 + 4x^2 + 4x + 2x^2 + x + 1 = 8x^3 + 6x^2 + 5x + 1
by Level 1 User (260 points)

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