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14 October, 14:30

find the sum of these polynomials. (5x^2-4x+2) + (3x^2+9x-8) = ? A. 8x^2-5x+10 B. 8x^2+5x-6 C. 8x^2-5x-6 D. 8x^2+5x+10

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  1. 14 October, 15:20
    0
    B is the answer

    Explanation

    If we suppose that x = 1

    The equation would equals 7

    And. (B) the only one that also equals 7

    You can suppose any number the answer would also be the same

    And am sorry if i have any mistakes with English language
  2. 14 October, 16:47
    0
    B: 8x^2+5x-6
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