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10 October, 17:53

Identify the factors of x2 - 8x - 20.

(x + 4) (x - 5)

(x + 5) (x - 4)

(x - 10) (x + 2)

(x - 2) (x + 10)

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  1. 10 October, 20:18
    0
    2x-8x-20 = (x-10) (x+2)

    x. x = χ²

    -10x + 2x = - 8x

    -10. + 2 = - 20
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