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17 August, 04:10

Subtract (2x3 + 9x - 8) - (4x2 - 15x + 7).

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Answers (1)
  1. 17 August, 04:34
    0
    Distribute invisible - 1

    -1 (4x^2-15x+7) = - 4x^2+15x-7

    now we have

    2x^3+9x-4x^2+15x-7

    group like terms

    2x^3-4x^2+9x+15x-8-7

    add

    2x^3-4x^2+24x-15
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