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31 July, 11:37

What are the solutions of y = x^2-x-20?

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  1. 31 July, 12:08
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    (x - 5) and (x + 4)

    Step-by-step explanation:

    Since - 20 = (-4) (5) or (4) (-5), and since - 5x + 4x becomes - 1x, we know right away that the factors are (x - 5) and (x + 4).
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