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7 October, 21:15

4x^2 + 8x - 11x + 6 - 5x^2 + 2

A. - x^2 - 3x + 8

B. - x^2 + 3x + 8

C. x^2 - 3x + 8

D. x^2 + 3x + 8

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Answers (2)
  1. 7 October, 23:42
    0
    I like to change all the subtraction to addition of the negative.

    4x^2 + 8x + (-11x) + 6 + (-5x^2) + 2

    Now combine the like terms.

    -x^2 - 3x + 8

    Your answer is A: - x^2 - 3x + 8
  2. 8 October, 00:11
    0
    4x^2 + 8x - 11x + 6 - 5x^2 + 2

    (4x^2 - 5x^2) + (8x - 11x) + 6 + 2

    -x^2 - 3x + 6 + 2

    -x^2 - 3x + 8

    The answer is: - x^2 - 3x + 8.
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