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16 November, 23:56

X2 + 3x - 4 = 0 Find the value of the discriminant. A) 5 B) 6 C) 10 D) 25

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  1. 17 November, 03:49
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    D

    Step-by-step explanation:

    given a quadratic equation in standard form

    ax² + bx + c = 0, then the discriminant is

    Δ = b² - 4ac

    x² + 3x - 4 = 0 ← is in standard form

    with a = 1, b = 3, c = - 4

    b² - 4ac = 3² - (4 * 1 * - 4) = 9 - ( - 16) = 9 + 16 = 25 → D
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