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Simplify: 21d - 8d^2 + 5d^3 - 5d^2

  • Math - ,

    21d-8d^2 +5d^3 -5d^2.

    Combine like-terms:
    5d^3 - 13d^2 + 21d,
    d(5d^2 - 13d + 21).

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