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    Solving Equations and Inequalities

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    2x^2+x-15=0

    solve each inequality. State the solution set using interval notation.

    1-2x/5-x<0

    1/3x-2/5y=5/6

    2x-3y=9

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    solve each equation
    ________________________________________
    2x^2+x-15=0

    Solution. We factor the left hand side to get

    So, implies that
    2x+5=0 or x-3=0
    So,
    x=-5/2 or x=3
    ...

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