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Math Help - quadratics with domain

  1. #1
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    quadratics with domain

    So here I am again with something new that I don't understand. I try to factor using FOIL, but it just won't work. I have to find the domain for the equation as well. If you could help me out I would really appreciate it.

    h(x)=3x^2 + 5x - 3
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  2. #2
    Junior Member
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    Sep 2008
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    for this question, i dont think its factorable. In that case if you want to find the roots, use the quadratic formula to find it. Most of the time, In a quadratic equation the domains are a element of real numbers.
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  3. #3
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    I don't know what to do with the domain. I have figured out that x=-2.135 and x=0.463 does that mean that the domain is between these numbers or what? I have a few questions like this where I just don't know if I am doing the domain right. Am I supposed to make it equal to zero, or plug in an (x,y)?
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