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Paul Dawkins
Paul's Online Notes: Algebra: Quadratic Equations Part I
Detailed math tutorial features notes and examples that illustrate how to solve quadratic equations by factoring and the square root property.
Khan Academy
Khan Academy: Quadratics by Factoring
Solve quadratic equations of the form ax^2+bx+c=0 that can be rewritten according to their linear factors.
Khan Academy
Khan Academy: Quadratics by Factoring (Intro)
Solve quadratic equations of the form x^2+bx+c=0 that can be rewritten according to their linear factors.
Math Planet
Math Planet: Use Graphing to Solve Quadratic Equations
A quadratic equation is an equation that can be written on the standard form ax^2 + bx + c = 0, where a is not = 0. One way of solving a quadratic equation is by factoring. Another way of solving a quadratic equation is to solve it...
Alabama Learning Exchange
Alex: "Factoring by Mack"
This strategy for factoring trinomials will eliminate the trial-and-error method used in most textbooks.The lesson will be a direct teaching lesson. With the teacher lecturing and the young scholars taking notes and then having the...