Wyzant
Wyzant: Solving Using the Quadratic Formula Worksheet
The practice sheet reviews how to solve equations using the quadratic formula. The resource consists of 20 questions with answers available.
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.
Khan Academy
Khan Academy: Solve Quadratic Equations Complex Solutions
Solve quadratic equations using the quadratic formula. Some of the equations have real solutions while others have complex solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Cuemath
Cuemath: Quadratic Functions
Explore the world of quadratic functions in this mini-lesson. Learn about the graphs of quadratic functions, quadratic functions formula, and other interesting facts. You can also try your hand at solving a few interesting practice...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Quadratic Equations
Here is a site that clearly and thoroughly explains the quadratic equations, including how to solve them by factoring, completing the square, and using the quadratic formula. There are example problems solved, problems for the student to...
Sophia Learning
Sophia: Solving for Quadratic Equations
Solve for x using the quadratic formula and complete practice problems. Assess learning with a quiz.
Cuemath
Cuemath: Quadratic Equations
A comprehensive guide for learning all about quadratic equations with definitions, quadratic formulas, how to solve them, solved examples, and practice questions.
Math Is Fun
Math Is Fun: Real World Examples of Quadratic Equations
Provides examples of how quadratic equations can be used in real-world scenarios, and the different methods used to solve them.
Paul Dawkins
Paul's Online Notes: Algebra: Applications of Quadratic Equations
Detailed math tutorial features notes and examples that review applications involving solving a quadratic equation including distance/rate problems and work rate problems.
BBC
Bbc: Higher Bitesize Maths: Quadratic Theory
A tutorial on quadratics presents topics including: factoring and solving quadratics, graphing quadratic functions, using completing the square and the quadratic formula to solve functions, the discriminant and conjugates. Plenty of...
Texas Instruments
Texas Instruments: Prodigious! Quadratics and Free Fall Motion
Uses the movie "October Sky" as an introduction to the study of free fall motion functions. Acts a summation activity to a quadratic unit in Algebra. Solve quadratic equations by graphing, factoring, and the quadratic formula.
Other
Sierra College: Elementary Algebra Review Sheet and Common Formulas
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
CK-12 Foundation
Ck 12: Analysis: Quadratic Inequalities
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn about graphing and solving quadratic inequalities. Students examine guided notes, review guided practice, watch instructional videos...
Math Is Fun
Math Is Fun: Quadratic Equation Solver
The tutorial examines how to solve quadratic equations. The resource consists of detailed examples, an interactive quadratic equation solver, and explanations about the algebra concept.
CK-12 Foundation
Ck 12: Algebra: Graphing Quadratic Equations Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review graphing quadratic equations. Examples are included.
Help Algebra
Help algebra.com: Quadratic Equations
This article gives a definition of quadratic equations, then demonstrates how to solve them. Factoring, completing the square and the quadratic formula are the methods described. The examples are accompanied by lists of steps for solving...
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Polynomial Equations
The tutorial investigates how to solve polynomial equations. Students learn about the concept through class notes, examples, and practice problems. Topics include solving quadratic equations, factoring, and the quadratic formula.
Illustrative Mathematics
Illustrative Mathematics: A Rei: Braking Distance
The purpose of this task is to give an application arising from a real-world situation, determining braking distance, in which a quadratic equation arises. In this scenario, it is natural to use a graphical method to find an approximate...
CK-12 Foundation
Ck 12: Algebra: Identification of Quadratic Models
[Free Registration/Login may be required to access all resource tools.] Understanding the equations of parabolas
CK-12 Foundation
Ck 12: Algebra: Completing the Square
[Free Registration/Login may be required to access all resource tools.] Learn how to complete the square in order to solve quadratic equations.
CK-12 Foundation
Ck 12: Algebra: Factorization Using Perfect Square Trinomials
[Free Registration/Login may be required to access all resource tools.] Factor perfect square trinomials and the difference of two squares and solve quadratic equations by factoring.
Other
Dans Math: Lessons: Intermediate Algebra
College professor Dan Bach presents a review of algebra concepts, including factoring, quadratic equations, and graphing parabolas. The examples are detailed, but easy to follow. This is a good site for reviewing before tests and quizzes.
Texas Instruments
Texas Instruments: Quadratic Functions
Students can use quadratic functions to solve physical problems. Students can use the y = a(x-h)^2 + k form and the velocity formula (0 = -16t^2 + vt + s).
Math Medics
S.o.s. Math: Algebra
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...