# Math Lessons

As a math teacher, I understand that a lot of students struggle with algebra. In fact, in math, I think more students seek help in algebra than any other math subjects. I also believe that acquiring a strong algebra skill set is a great foundation to learn other branches of mathematics such as Geometry, Trigonometry, and Calculus. With this in mind, I created lessons/tutorials to explain algebra concepts in a more direct and practical approach. I try to use enough examples with well-explained and detailed solutions to show how to solve certain types of problems. Moreover, I added algebra worksheets to test how well you know the concepts and challenge you to apply what you have learned so far.

The main thing is…these lessons are not intended to replace your textbooks but provide you with free supplemental resources to help you understand algebra concepts much better.

To start studying, choose from one of our algebra lessons below. Please enjoy!

## INTRODUCTORY ALGEBRA

Add and Subtract Fractions: Different Denominators

Add & Subtract Fractions: Same Denominator

Add and Subtract Numbers using the Number Line

Divisibility Rules for 2, 3, 4, 5, 6, 9, and 10

Finding All Factors of a Number using the Rainbow Method

Function: Notation and Evaluation

Linear Equations: Solving One-Step Equations

List of All Factors of Numbers from 1 to 100

List of Multiples of Numbers from 1 to 100 (First Ten Multiples)

Multiply and Divide Positive/Negative Numbers

Plotting Points on the Cartesian Plane

Scientific Notation: How to Write

The Properties of Real Numbers

Translating Basic Math Phrases into Algebraic Expressions

Translating Multi-Part Math Phrases into Algebraic Expressions

**INTERMEDIATE ALGEBRA**

Absolute Value Functions: How to Graph

Arithmetic Sequence: Definition

Arithmetic Sequence: Practice Problems

Completing the Square: More Examples

Distance Formula: How to Derive

Dividing Polynomials: Long Division Method

Dividing Polynomials: Synthetic Division Method

Domain and Range of Linear and Quadratic Functions

Domain and Range of Radical and Rational Functions

Even, Odd, and Neither Functions

Factorial: Notation, Formula and Examples

Factorial: Simplifying with Variables

Factoring Binomial: Sum/Difference of Two Cubes

Factoring Binomial: Sum/Difference of Two Cubes (Practice Problems)

Factoring Binomial: Difference of Two Squares

Factoring Binomial: Difference of Two Squares (Practice Problems)

Factoring Trinomial: “Box” Method

Factoring Trinomial: Easy Case

Factoring Trinomial: Hard Case

Graphing a Line (Quick Summary)

Graph a Line Using Slope and y-Intercept

Graph a Line Using Table of Values

Graph a Line Using x and y Intercepts

Graphing Linear Inequalities: Examples

Graphing System of Linear Inequalities

Graphing Vertical and Horizontal Lines

Linear Equations: Solving Two-Step Equations

Linear Equations: Solving Multi-Step Equations

Linear Inequalities: Solving Multi-Step Linear Inequalities

Parallel and Perpendicular Lines: Find Their Equations

Parallel and Perpendicular Lines: Their Slopes

Polynomials: Addition and Subtraction

Polynomials: Multiplying Binomials using FOIL Method

Quadratic Formula: How to Derive

Radical Expressions: Adding and Subtracting

Radical Expressions: Multiplying

Radical Expressions: Rationalizing the Denominator

Radical Expressions: Simplifying

Slope of a Straight Line: Types of Slope

Slope of a Straight Line: Slope Formula

Straight Line: Slope-Intercept Form

Straight Line: Point-Slope Form

Systems of Equations: Substitution Method

Systems of Equations: Elimination Method

Solving Quadratic Equations by Square Root Method

Solving Quadratic Equations by Factoring Method

Solving Quadratic Equations by the Quadratic Formula

Solving Quadratic Equations by Completing the Square

**ADVANCED ALGEBRA**

Adding and Subtracting Matrices

Scalar Multiplication and Matrix to Matrix Multiplication

Complex Fractions: Simplifying

Complex Numbers: Multiplication

Exponential Equations: Solving using Logarithms

Exponential Equations: Solving without Logarithms

Inverse of Absolute Value Function

Inverse of Exponential Function

Inverse of Logarithmic Function

Inverse of Square Root Function

Logarithms: Combining or Condensing

Logarithms: Solving Logarithmic Equations

Partial Fraction Decomposition

Rational Expressions: Addition and Subtraction

Rational Expressions: Multiplication

Rational Inequalities: Solving