Algebra Question

posted by .

Quadratic equations can be solved by graphing, using the quadrat completing the square, and factoring. What are the pros and cons these methods? When might each method be most appropriate?

  • Algebra Question -

    Factoring is quickest and best if simple integer factors are possible
    The quadratic equation and completing the square are the same thing as far as I am concerned. This is the way to go if you have a calculator handy and the numbers are too nasty for factoring.
    Use a graph if you want to see how the function is behaving as well as its zeros.

  • Algebra Question -

    If the numbers are reasonably small the first thing I try is factoring

    If the coefficient of the square term is 1, and the middle term is even, then completing the square works great

    For all other cases I simply use the quadratic formula, knowing that it always works.

    One of my favourite questions when I was still teaching was to give 3 different quadratic equations, using a different method for each.
    (The trick was that there was only one that factored, so it you used the quadratic formula for that one, you were out of options for the factoring type.)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method?
  2. ALGEBRA--MAT 117

    Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods?
  3. algebra

    "Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method?
  4. algebra

    Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method?
  5. algebra

    o Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method?
  6. ALGEBRA

    Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods?
  7. Algebra

    I understand that systems of equations can be solved by graphing or by using substitution or elimination. But I cannot think of any pros or cons so... What are pros and cons of each method?
  8. math 117

    Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods?
  9. algebra

    Quadratic equations can be solved by graphing,using the quadratic formula, completing the square, and factoring. What are the pros and cons of the methods. when would each be appropriate?
  10. Mat/117 DQ2

    Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods?

More Similar Questions