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ALGEBRAIC METHOD

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HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0

  • ALGEBRAIC METHOD -

    graph the parabola
    note the two parts of the graph that are above the x-axis.

    The graph crosses the x-axis at -4 and 2/3.

    So, the solution set is x< -4 or x > 2/3.

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