Name: Khan Academy – Test Preparation Use the following to help

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Use the following to help you gain a better understanding of the following topics in chapter 7.

Topic

Adding and Multiplying Polynomials

(Section 7.0)

Factoring quadratics

(Section 7.0)

Completing the square and the

Quadratic Formula 1

(Section 7.3 and 7.4)

The imaginary unit i

(Section 7.5)

Complex Numbers

(Section 7.5)

Completing the square and the quadratic formula 2

(Section 7.5)

Video

Terms and coefficients and exponents in a polynomial

Addition and subtraction of polynomials

Multiplying polynomials example

Multiplying polynomials example 2

Factoring quadratic expressions

Examples: Factoring simple quadratics

Solving a quadratic equation by factoring

Recognizing a perfect square quadratic

Example 1: Factoring trinomials with a common factor

Solving quadratics by factoring 2

Factoring special products

Example 1: Factoring difference of squares

Factoring difference of squares 3

Solving quadratic equations by square roots

Solving quadratic equations by completing the square

How to use the quadratic formula

Introduction to i and imaginary numbers

Calculating i to arbitrary exponents

Imaginary roots of negative numbers i as the principal root of -1

Introduction to complex numbers

Plotting complex numbers on the complex plane

Adding complex numbers

Subtracting complex numbers

Multiplying complex numbers

Complex Conjugates example

Dividing complex numbers

Example: Complex roots for a quadratic

Discriminant of quadratic equations

Discriminant for types of solutions for a quadratic

Khan Academy – Test Preparation

Exercise

Adding and subtracting polynomials

Multiplying polynomials

Factoring quadratics 1

Solving quadratics by factoring

Factoring quadratics 2

Factoring difference of squares 1

None

Solving quadratics by taking the square roots

Solving quadratics by completing the square 1

Solving quadratics by completing the square 2

Using the quadratic formula

Imaginary unit powers

None

The imaginary unit and complex numbers

The complex plane

Adding and subtracting complex numbers

Multiplying complex numbers

Dividing complex numbers

Quadratic formula with complex solutions

Solutions to quadratic equations

Topic

Dividing Polynomials

(Section 7.8)

Synthetic Division

(Section 7.8)

Video

Polynomial division

Polynomial divided by monomial

Dividing multivariable polynomial with monomial

Dividing polynomials 1

Dividing polynomials with remainders example

Synthetic division

Synthetic division example 2

Why synthetic division works

Factoring and roots of higher degree polynomials

(Section 7.7)

Identifying graph based on roots

Polynomial graphs and end behavior

(Section 7.7)

Fundamental Theorem of Algebra

(Section 7.6-7.8)

Polynomial end behavior

Polynomial end behavior example

Another polynomial end behavior example

Polynomial end behavior exercises example

Fundamental theorem of algebra

Fundamental theorem of algebra for quadratics

Possible number of real roots

Other Websites that are Helpful:

Rational Root Theorem (Section 7.8) http://hotmath.com/help/gt/genericalg2/section_6_9.html

Long Division, Synthetic Division, Factor Theorem (Section 7.8) http://hotmath.com/help/gt/genericalg1/section_7_3.html

http://hotmath.com/help/gt/genericalg2/section_6_8.html

Exercises

Dividing polynomials with remainders

None

Using zeros to graph polynomials

Graphs of polynomials

The fundamental theorem of algebra

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