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algebra

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how do you solve quadratic equations

Hlep

  • algebra -

    The quadratic equation always works,but factoring can do it also, if the factors are easy.

    http://www.purplemath.com/modules/solvquad.htm

  • algebra -

    Put it in the form ax^2 + bx + c = 0



    If you cannot factor it easily into two momialsw, then use this "quadratic equation" for the two solutions.

    x = [-b +/- sqrt(b^2-4ac)]/2a

    +/- means "plus or minus"
    "sqrt" means "square root of"

    They should me teaching you thisw equation as part of your algebra course.

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