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5 November, 22:02

Factor completely 18x2 - 21x - 15.

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Answers (2)
  1. 5 November, 22:14
    0
    3 (6x² + 3x - 10x - 5)

    = 3 (3x (2x + 1) - 5 (2x + 1))

    = 3 (2x + 1) (3x - 5)
  2. 5 November, 22:17
    0
    18x2 - 21x - 15

    = 3 (6x^2 - 7x - 5)

    = 3 (3x - 5) (2x + 1)
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