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5 November, 16:51

Factorise 2p^2 - p - 10

(2p squared)

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Answers (1)
  1. 5 November, 20:34
    0
    2p² - p - 10 = 0

    2 = a

    - 1 = b

    - 10 = c

    To factor, find two numbers that multiply to equal a·c and also that have a sum of b

    2p² + 4p - 5p - 10 = 0

    2p (p + 2) - 5 (p + 2) = 0

    Answer: (2p - 5) (p + 2) = 0
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