CK-12 Foundation
Ck 12: Algebra: Quadratic Formula
[Free Registration/Login may be required to access all resource tools.] Learn how to use the quadratic formula.
Khan Academy
Khan Academy: Equations and Inequalities Word Problems
Construct an equation or an inequality that models a given context. Modeling expressions can be quadratic, rational, or exponential. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video,...
Cuemath
Cuemath: Equation
A comprehensive guide for learning all about equations with definitions, how to solve them, solved examples, and practice questions.
Oswego City School District
Regents Exam Prep Center: Linear Quadratic Systems
The mathematics tutorial explores how to solve linear and quadratic systems of equations. The lesson consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes a worksheet that...
Elias Saab
Math Drills: Roots of Polynomial Functions Quiz
An interactive quiz which provides students with a problem involving a polynomial function to be solved. Students input their solution and have the program evaluate it. Hints are available if the student needs them, and explanations are...
Khan Academy
Khan Academy: Solve Equations Using Structure
Solve advanced equations by strategically using quadratic factorization methods.
Mangahigh
Mangahigh: Algebra: Solve Trinomials by Using the Quadratic Formula
Students watch an online tutorial on the concept of solving trinomials using the quadratic formula. After watching, students test their knowledge by attempting ten practice problems that increase or decrease in difficulty based on their...
Cool Math
Coolmath: The Quadratic Formula
Reference material and practice problems using the quadratic formula.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: The Discriminant
Thirty-eight problems present a variety of practice working with discriminant. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to...
CK-12 Foundation
Ck 12: Trigonometry: Trigonometric Equations Using Factoring
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving trigonometric equations using factoring, square roots, and the quadratic formula.
Khan Academy
Khan Academy: Completing the Square (Intermediate)
Solve quadratic equations of the form x^2+bx+c by completing the square. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: N cn.c.7 and a rei.b.4.a: Completing the Square
The goal of this task is to solve quadratic equations with complex roots by completing the square. Aligns with N-CN.C.7 and A-REI.B.4.aI.
Khan Academy
Khan Academy: Quadratics by Taking Square Roots: Strategy
Analyze the process of solving a quadratic equation by taking the square root.
University of North Carolina
S University of North Carolina Wilmington: Olving Equations Algebraically
Site provides tutorial on solving algebraic equations including radical equations, quadratic equations, polynomial equations, fractional equations, absolute value equations.
National Council of Teachers of Mathematics
Nctm: Illuminations: Algebra Tiles
This resource is about factoring linear and quadratic expressions in one variable, evaluating them at a given value of the variable, multiplying factors to find the expanded form of the expression, and solving linear and quadratic...
CK-12 Foundation
Ck 12: Algebra: Completing the Square
[Free Registration/Login may be required to access all resource tools.] Solve quadratic equations by completing the square.
Illustrative Mathematics
Illustrative Mathematics: A ced.a.2: Silver Rectangle
This task provides a geometric context for working with ratios and algebraic equations. Students will create and then solve an algebraic equation describing a remarkable shape, the silver rectangle. Aligns with A-CED.A.2.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Shodor Education Foundation
Shodor Interactivate: Algebra Four
A game for two players to for a connect four type of game where students solve equations (several difficulty levels of quadratic and/or linear equations)to drop a chip.
CK-12 Foundation
Ck 12: Algebra: Solutions Using the Discriminant
[Free Registration/Login may be required to access all resource tools.] Learn how to use the discriminant to solve problems and determine the number of solutions to quadratic equations.
CK-12 Foundation
Ck 12: Algebra: Radical Equations
[Free Registration/Login may be required to access all resource tools.] Learn how to solve equations involving radicals.
Interactive Mathematics
Interactive Mathematics: Complex Numbers: Basic Definitions
After reviewing the process of solving quadratic and cubic equations, a definition of an imaginary number is given. Also included is a demonstration of simplifying powers of the imaginary number and writing complex numbers. Examples are...
ClassFlow
Class Flow: Quadratic Curves Algebra
[Free Registration/Login Required] In this flipchart, students interpret and graph quadratic curves. Students solve quadratic equations and then use the graphing features to graph the resultant quadratic curve.
Khan Academy
Khan Academy: Quadratic Word Problems (Standard Form)
Solve real-world word problems that involve quadratic models. In this exercise, that models are given in standard form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...