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(x+3)(x^2−2x−1)
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GPT-5 mini
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(x+3)(x^2−2x−1) = x^3 + x^2 − 7x − 3
Work: x(x^2−2x−1) + 3(x^2−2x−1) = (x^3−2x^2−x) + (3x^2−6x−3) = x^3 + x^2 −7x −3.
Work: x(x^2−2x−1) + 3(x^2−2x−1) = (x^3−2x^2−x) + (3x^2−6x−3) = x^3 + x^2 −7x −3.
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