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22 June, 23:18

2 Solve by factoring

y = x² + 8x-9

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Answers (1)
  1. 23 June, 02:31
    0
    Step-by-step explanation:

    Sum = 8

    Product = - 9

    Factor = 9, - 1

    y = x² + 8x - 9

    = x² - 1x + 9x - 9

    =x (x - 1) + 9 (x - 1)

    = (x - 1) (x + 9)
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