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March 29, 2017

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3(x-1) -2(x^2+3x+4)-5(x+9)=

  • Algebra - ,

    Start by expanding the parentheses:

    3(x-1) -2(x^2+3x+4)-5(x+9)
    3x - 3 - 2x^2 - 6x - 8 - 5x - 45

    Then collect terms of like degree:

    -2x^2 + (3-6-5)x + (-3-8-45)
    -2x^2 - 8x - 56

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