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27 October, 13:20

Factor the trinomial x^2 - 2x - 8

(x+4) (x-2)

(x-8) (x+1)

(x+8) (x-1)

(x-4) (x+2)

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Answers (1)
  1. 27 October, 13:32
    0
    Well what two numbers multiply to get - 8 and add to get - 2?

    Well, to get - 8, we either have (-1,8), (-2,4), (-4,2), (-8,1)

    8-1=7

    -2+4=2

    2-4=-2

    1-8=-7

    Thus it should be (-4,2),

    This means we should get (X-4) (X+2)
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