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The graph is that of y = 2x2 - 5x - 3. For what value of x will y be negative? F...



Dicussion (1)

  • 2x2 - 5x - 3 = 0

    2x2 - 6x + x - 3 = 0

    2x(x - 3) + 1(x - 3) = 0

    (2x + 1)(x - 3) = 0

    2x + 1 = 0

    2x = -1

    x = -\(\frac{1}{2}\)

    x - 3 = 0

    -\(\frac{1}{2}\) < x < 3

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