Factoring Quadratic Equations
Date: 5/27/96 at 10:9:38 From: Anonymous Subject: Quadratic Equation Factoring I am totally lost on quadratic equations and I was wondering if you could show me the fastest way to solve any type of quadratic equation. The part that really confuses me is the (yx + w)(yx + w), the y part, and the w. How do I know what to put there? I heard you had to take the factors of the a in (ax^2 + bx + c = 0) and the factors of c and somehow make them add up to b. I don't really know. Can you help?
Date: 5/27/96 at 21:25:32 From: Doctor Ken Subject: Re: Quadratic Equation Factoring Hello! One thing that may clear something up is that when you said (yx + w)(yx + w), it would be more accurate to say (yx + w)(jx + k), because the numbers in the first factor and the second factor don't have to be the same. There are some problems in our archives that deal with factoring quadratic equations. Take a look at those, and if you're still confused, feel free to write back with more questions. If you do write back, it would help if you can give us an example of the kinds of problems you're working on and where you get stuck. Quadratic Trinomials http://mathforum.org/library/drmath/view/52902.html Factoring Polynomials http://mathforum.org/library/drmath/view/58523.html Solve by Factoring http://mathforum.org/library/drmath/view/58536.html By the way, my personal favorite method to solve quadratics is to use the quadratic formula all the time, regardless of whether you could have factored it or not. But some people don't like that, so you can use whatever method you like. -Doctor Ken, The Math Forum Check out our web site! http://mathforum.org/dr.math/
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.