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14 April, 22:40

Simplify (x - 4) (x2 + 5x + 2).

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Answers (2)
  1. 14 April, 22:44
    0
    Distribute

    x3 + 5x2 + 2x - 4x2 - 20x - 8

    Add or subtract like terms.

    x3 + x2 - 18x - 8
  2. 14 April, 23:08
    0
    (x - 4) (x^2 + 5x + 2) =

    x (x^2 + 5x + 2) - 4 (x^2 + 5x + 2) =

    x^3 + 5x^2 + 2x - 4x^2 - 20x - 8 =

    x^3 + x^2 - 18x - 8 <==
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