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9 January, 13:36

What is the discriminant of the quadratic equation 9x2 - X - 8=0?

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  1. 9 January, 16:26
    0
    288

    Step-by-step explanation:

    a = 9

    b = - 1

    c = - 8

    b^2 * - 4 * (a * c)

    Just filing in the numbers given above:

    -1^2 * - 4 * (9 * - 8)

    1 * - 4 * (-72)

    1 * + 288 = 288
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