Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Quadratic Equations
Find a quick, concise explanation of the quadratic equations. An example is given and clearly explained.
Math Is Fun
Math Is Fun: Factoring Quadratics
The tutorial examines how to factor quadratics. The resource consists of detailed examples and explanations about the algebra concept.
Math Medics
S.o.s. Math: Quadratic Equations: Basic Definitions
This S.O.S. Math tutorial offers definitions and examples of quadratic equations and quadratic functions.
Other
Completing the Square to Get a Quadratic Function Into Standard Form
This site shows students how to put a quadratic function into standard form by completing the square.
ClassFlow
Class Flow: Exploring Quadratic Functions
[Free Registration/Login Required] Use this interactive flipchart to allow students to explore quadratic functions in algebra.
Purple Math
Purplemath: Factoring Polynomials: How To
Demonstrates the steps involved in factoring a general polynomial, including using the Rational Roots Test and synthetic division. Shows how to "cheat" with a graphing calculator.
Purple Math
Purplemath: Special Factoring: Differences of Squares
Demonstrates how to use the formula for finding the differences of squares, and warns against trying to factor a sum of squares.
Purple Math
Purplemath: Solving Polynomials: How To
Demonstrates the steps involved in solving a general polynomial, including how to use the Rational Roots Test and synthetic division. Points out when using a graphing calculator can be very helpful.
Curated OER
Zona Land/the Function Institute/poly. Functions/graphs
Contains an applet that allows you to graph quadratic functions. An example is given and it lets you change the coefficient values.
Math Words
Mathwords: Quadratic Equation
The definition of a quadratic equation, followed by examples.
Wolfram Research
Wolfram Mathworld: Polynomial Factorization
This site discusses factoring of polynomials, giving a general definition, and many links to satisfy unfamiliar terminology. There are however very few examples.