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20 April, 15:35

Multiply and simplify. (2x - 1) (6x - 7)

A)

12x2 - 20x - 7

B)

12x2 - 2x + 7

C)

12x2 + 20x + 7

D)

12x2 - 20x + 7

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Answers (1)
  1. 20 April, 19:22
    0
    D) 12x² - 20x + 7

    Step-by-step explanation:

    Use FOIL when multiplying 2 binomials ...

    FOIL is Firsts, Outsides, Insides, Lasts. It's the order in which you multiply the numbers in the binomials ...

    (2x - 1) (6x - 7)

    Firsts: (2x) (6x) = 12x²

    Outsides: (2x) (-7) = - 14x

    Insides: (-1) (6x) = - 6x

    Lasts: (-1) (-7) = 7

    Now add them up ...

    12x² - 14x - 6x + 7

    12x² - 20x + 7
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