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 Quadratic Equations by Factoring
Demonstrates how to solve quadratics using factoring (that is/the Zero-Product Property). Provides worked examples/and warnings about common mistakes.
University of Saskatchewan (Canada)
University of Saskatchewan: Physics 111 Algebra Review
This site provides a brief algebra review in the following areas: exponents, logarithms, quadratic equations, and linear equations.
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.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
Tex2html Wrap Inline100
Here you can find a general overview of the quadratic formula, complete with a full breakdown of how to come up with the quadratic formula with a quadratic equation, as well as am example of using the quadratic formula to solve a...
Curated OER
Displaymath102
Here you can find a general overview of the quadratic formula, complete with a full breakdown of how to come up with the quadratic formula with a quadratic equation, as well as am example of using the quadratic formula to solve a...
Curated OER
Tex2html Wrap Inline110
Here you can find a general overview of the quadratic formula, complete with a full breakdown of how to come up with the quadratic formula with a quadratic equation, as well as am example of using the quadratic formula to solve a...
Curated OER
Tex2html Wrap Inline112
Here you can find a general overview of the quadratic formula, complete with a full breakdown of how to come up with the quadratic formula with a quadratic equation, as well as am example of using the quadratic formula to solve a...
Curated OER
Displaymath122
Here you can find a general overview of the quadratic formula, complete with a full breakdown of how to come up with the quadratic formula with a quadratic equation, as well as am example of using the quadratic formula to solve a...
Curated OER
Displaymath25
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
Curated OER
Displaymath73
This lesson discusses the sign of a quadratic function as it applies to inequalities.