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...
Alabama Learning Exchange
Alex: Classifying Complex Numbers
This lesson helps learners distinguish between strictly complex numbers, strictly real numbers and strictly imaginary numbers while learning that real numbers and imaginary numbers are subsets of the set of complex numbers.
CK-12 Foundation
Ck 12: Algebra: Factoring Polynomials Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review factoring polynomials. Examples are included.
Khan Academy
Khan Academy: Parts of Complex Numbers
Determine the real and the imaginary parts of complex numbers.
CK-12 Foundation
Ck 12: Algebra Ii: 11.13 Fundamental Theorem of Algebra
The Fundamental Theorem of Algebra is really the foundation on which most of the study of Algebra is built. In simple terms it says that every polynomial has zeros. That means that every polynomial can be factored and set equal to zero....
CK-12 Foundation
Ck 12: Algebra Ii: 1.7 the Fundamental Theorem of Algebra for Quadratics
This section will primarily explore how the Fundamental Theorem of Algebra applies to Quadratic Functions.
CK-12 Foundation
Ck 12: 1.5 From Quadratics to Complex Numbers
This section introduces imaginary and complex numbers in the context of solutions to quadratic equations that don't have real-number solutions.
Khan Academy
Khan Academy: Zeros of Polynomials (With Factoring)
Use various methods in order to find all the zeros of polynomial expressions or functions using this five-question quiz.
Help Algebra
Help algebra.com: Examples of Polynomial Equations
To solve polynomials of higher degree, use synthetic division as demonstrated here. The Rational Zero Theorem, Upper and Lower Bound Theorem, and Descartes Rule of Signs are explained.
Math Notes and Math Tests
Pre Calculus Notes: Finding Zeros of Polynomial Functions [Pdf]
Students learn how to find the zeros of a polynomial function. Topics include rational zero test, factoring, and conjugate pairs of zeros. Techniques and examples are included
Windstream
Ojk's Precalculus Study Page: Solving Polynomial Equations
A comprehensive look at the three main ways to find the roots of a polynomial: factoring, formulas, and the rational root theorem.
Sophia Learning
Sophia: Finding a Polynomial Passing Through a Point: Lesson 2
This lesson uses the linear factorization theorem to find a particular function polynomial passing through a point given the zeros of that function. It is 2 of 7 in the series titled "Finding A Polynomial Passing Through A Point."
Sophia Learning
Sophia: Finding a Polynomial Passing Through a Point: Lesson 4
This lesson uses the linear factorization theorem to find a particular function polynomial passing through a point given the zeros of that function. It is 4 of 7 in the series titled "Finding A Polynomial Passing Through A Point."
Wyzant
Wyzant: Factoring Completely
Learners complete a worksheet on factoring expressions. An example problem and answer sheet is included.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Irreducible/prime Polynomials
Find a quick, concise explanation of irreducible (prime) polynomials. Several examples are 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.
Interactive Mathematics
Interactive Mathematics: Polynomial Functions and Equations
Want to find the roots of a polynomial function? Learn how, using several methods in this tutorial. Graphing and Scientific Notebook are used on the main page. Click on the "Dinosaur Method" link at the bottom of the page to see the...
Math Slice
Math Slice: Polynomials
Generate easy and hard worksheets for factoring polynomials. solving quadratic equations, and multiplying polynomials.
Math Notes and Math Tests
Pre Calculus Notes: The Fundamental Theorem of Algebra (Fta) [Pdf]
Learners examine the fundamental theorem of algebra. The resource investigates the linear factorization theorem, Descartes's rule of signs, and rules for zeros.
Wolfram Research
Wolfram Mathworld: Fundamental Theorem of Algebra From Mathworld
This site from MathWorld contains a short description of the fundamental theorem of algebra.
Cut the Knot
Cut the Knot!: Fundamental Theorem of Algebra
Contains a summary of the fundamental theorem of algebra as it pertains to integrals.
Cut the Knot
Cut the Knot!: Remarks on Proving the Fundamental Theorem of Algebra
Contains relevant information regarding to the fundamental theorem of 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.