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19 December, 04:41

A, B, and C are polynomials, where: A = 3x - 4 B = x + 7 C = x2 + 2 What is A2 - (B + C) in simplest form? 8x2 - 25x + 7 8x2 - 25x + 11 10x2 - 25x + 7 10x2 - 25x + 11

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  1. 19 December, 05:11
    0
    A

    Step-by-step explanation:

    I took the assignment on Ed gen uity
  2. 19 December, 05:29
    0
    8x²-25x+7 ...

    Step-by-step explanation:

    A² = (3x-4) (3x-4)

    A² = 3x (3x-4) - 4 (3x-4)

    A² = 9x² - 12x - 12x + 16

    A² = 9x² - 24x + 16

    while

    B+C = (x+7) + (x² + 2)

    B+C = x+7+x²+2

    B+C = x²+x+9

    Therefore:

    A² - (B+C) = 9x² - 24x + 16 - (x²+x+9)

    = 9x² - 24x + 16 - x² - x - 9

    = 8x²-25x+7
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