Solve Quadratic Equations
Home > Lessons > Solve Quadratic Equations
Updated October 21st, 2015
Introduction
   This lesson will teach you how to solve quadratic equations using a variety of methods. Here are the sections within this lesson:


   A quadratic equation is an equation that can be written in the form...

ax^2 + bx +c = 0

...such that the a-value is not equal to zero.

   The term 'quad' from 'quadratic' relates to a square due to the x-squared term.

   The sections below will explain how to solve quadratic equations using a variety of methods.


   This method describes how to solve quadratic equations by factoring the quadratic polynomial into a product of two binomials. This lesson requires a prerequisite knowledge of factoring. If you are uncertain how to factor, first view these videos on factoring.

      esson: Factoring Quadratic Polynomials

   This video demonstrates how quadratic equations can be solved using the method of factoring.

      ideo: Solve Quadratic Equations by Factoring


   This method involves relationships regarding squared binomials. To read more about this method, use the lesson link that follows.

      esson: Completing the Square


   This method involves the use of a formula -- derived using a method called Completing the Square. Use the link that follows to access a lesson that will explain in detail how to use the formula and how it was derived.

      esson: Using the Quadratic Formula


   This method describes how to solve quadratic equations by method of graphing. Due to the visual nature of this method, the video below can best demonstrate how it is to be utilized.

      ideo: Solve Quadratic Equations by Graphing


      esson: Operations on Polynomials
      esson: Rational Expressions
      esson: Factoring
      esson: Polynomials, Factors, Zeros
      esson: Conic Sections