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Math Help - Factoring?

  1. #1
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    Factoring?

    Hello. I am new to this site, and I am pleased to meet you all. I was just wondering, how do you factor non-quadratic equations? My teacher mentioned grouping but what exactly is that?
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  2. #2
    Member Jonboy's Avatar
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    here's a good explanation:

    Factoring By Grouping

    If that does not work for factoring, than you may use the Rational Roots Theorem. One you find a root, such as -2, then you know you have a factor of (x + 2), as the rational roots are the x - intercepts of the graph.
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  3. #3
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    What if the root isnt rational? If the root isnt rational, will it always be able to be solved by grouping?
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  4. #4
    Member Jonboy's Avatar
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    The Rational Root Theorem is not needed to factor by grouping. At least, not that I'm aware of.

    Generally, you will always get rational roots in the rational roots theorem. This is because the possible roots are formed by p over q, which are rational numbers.
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  5. #5
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    Um just wondering, but can you explain the rational root theorem in a little more detail?
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  6. #6
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    Here's a detailed explanation. There' lots out there. Did you google it?.

    The Rational Roots Test
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  7. #7
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    Thanks! (And yeah, I did forget to google it)
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