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12 May, 23:38

Factorise 2x^2 - x-21

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Answers (1)
  1. 13 May, 02:57
    0
    (x + 3) * (2x - 7)

    Step-by-step explanation:

    2x² - x - 21

    Write as a difference

    2x² + 6x - 7x - 21

    Factor the expressions

    2x * (x + 3) - 7 (x + 3)

    Factor the expression

    (x + 3) * (2x - 7)
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