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29 September, 12:54

Which expression is equivalent to x^2+3x+3 [ (2x^2+13x+15) : (x+5) ]

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Answers (2)
  1. 29 September, 13:31
    0
    x^2+9x+9 is the answer.
  2. 29 September, 15:23
    0
    2x^3+9x^2+15x+9

    Step-by-step explanation:

    x^2+3x+3 (2x^2+13x+15/x+5)

    Factor the numerator of 2nd term into:

    (2x+3) (x+5)

    Then cancel x+5 from top and bottom of fraction.

    So you are left with:

    x^2+3x+3 (2x+3)

    2x^3+6x^2+6x+3x^2+9x+9

    Combine like terms to get answer above
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