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8 October, 00:18

Expand the polynomial: (-a+b) (b-a)

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Answers (2)
  1. 8 October, 01:47
    0
    a^2 - 2ab + b^2

    Step-by-step explanation:

    Step 1: Foil

    (-a + b) (b - a)

    (-a * b) + (-a * - a) + (b * b) + (b * - a)

    -ab + a^2 + b^2 - ab

    a^2 - 2ab + b^2

    Answer: a^2 - 2ab + b^2
  2. 8 October, 03:31
    0
    a² - 2ab + b²

    Step-by-step explanation:

    (-a+b) (b-a)

    (b-a) (b-a)

    (b-a) ²

    b² - 2ab + a²

    Or

    a² - 2ab + b²
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