Free Course Image Advanced Algebra Lessons

Free online courseAdvanced Algebra Lessons

Duration of the online course: 4 hours and 42 minutes

New

Build confidence in advanced algebra with a free online course tackling absolute value, quadratics, rational expressions, and trig—practice-ready with a certificate.

In this free course, learn about

  • Solve absolute value equations by splitting into two linear cases and checking solutions
  • Graph absolute value equations as two lines; understand vertex form and translations
  • Find imaginary solutions to quadratics (e.g., x^2+4=0) using i and complex numbers
  • Compare completing the square vs quadratic formula; know when completing the square helps
  • Add/subtract rational expressions using the least common denominator (LCD)
  • Solve rational equations, use blow-up-fractions trick, and exclude invalid (extraneous) solutions
  • Simplify complex rational (compound) fractions using common denominators and factoring
  • Use all 6 right-triangle trig ratios (sin, cos, tan, csc, sec, cot) to relate sides/angles
  • Use inverse trig functions (e.g., arccos) to find unknown angles from side ratios
  • Apply the Law of Sines to solve oblique triangles for missing sides/angles

Course Description

Strengthen the algebra skills that show up again and again in higher math, science courses, and exam prep. This free online course is designed for learners who want more than memorizing steps: you will learn how to think through problems, check your work, and recognize patterns that make challenging questions feel manageable. Whether you are catching up after a tough unit or pushing ahead for a stronger foundation, the lessons focus on building accuracy and confidence.

You will work with absolute value equations by turning them into clear, solvable cases and by understanding what the graphs are telling you. Quadratic equations are treated from multiple angles so you can choose the method that fits the situation, including techniques that reveal structure rather than hiding it behind shortcuts. When equations lead into the imaginary and complex number system, you will see exactly why those solutions appear and how to interpret them correctly, which is essential for advanced algebra success.

The course also develops fluency with rational expressions and rational equations, including the key habits that prevent common mistakes such as losing restrictions or introducing extraneous solutions. Instead of rushing, you will learn to simplify cleanly, pick an efficient approach, and confirm that your final answer makes sense. These skills transfer directly to later topics like functions, calculus preparation, and technical problem solving.

To round out your toolkit, the course connects algebra to trigonometry through right-triangle ratios and oblique-triangle strategies, helping you move between relationships, angles, and lengths with purpose. You will also practice interpreting and transforming conic sections like hyperbolas and ellipses, a topic that rewards visual reasoning and careful algebraic manipulation. With video explanations and practice-style questions throughout, this course supports steady progress, stronger test performance, and a more confident approach to advanced math.

Course content

  • Video class: Advanced Algebra - Solving Absolute Value Equations 07m
  • Exercise: What are the solutions for the absolute value equation 3|4w + 1| - 5 = 10?
  • Video class: Advanced Algebra - Graphing Absolute Value Equations by two lines or Translations 09m
  • Exercise: How do you graph an absolute value equation using two linear equations?
  • Video class: Advanced Algebra - Imaginary and Complex Solutions to Quadratic Equations part 1 14m
  • Exercise: What is the imaginary solution to the equation x² + 4 = 0?
  • Video class: Advanced Algebra - Imaginary and Complex Solutions to Quadratic Equations part 2 11m
  • Exercise: What happens when solving the quadratic equation x^2 + 4 = 0?
  • Video class: Advanced Algebra - Complete the Square to Solve Quadratic Equations vs Quadratic Formula 11m
  • Exercise: What is the benefit of completing the square when solving quadratic equations?
  • Video class: Advanced Algebra - Add or Subtract Rational Expressions 10m
  • Exercise: How to Determine the Least Common Denominator for Rational Expressions?
  • Video class: Advanced Algebra - Solving Rational Equations (and B.O.F.) 09m
  • Exercise: What is the result of solving the rational equation using blowout fractions trick (BF)?
  • Video class: Advanced Algebra - Simplify Complex Rational Fractions 13m
  • Exercise: What is the final simplified form of the compound fraction after using the common denominator method?
  • Video class: Advanced Algebra Lesson - Right Triangle Trigonometry - all 6 ratios 09m
  • Exercise: What is the secant of angle B in a right triangle?
  • Video class: Advanced Algebra Lesson - Right Triangle Trigonometry - all 6 ratios part 2 06m
  • Exercise: What is the inverse operation of cosine used for?
  • Video class: Advanced Algebra Lesson - Trigonometry - Law of Sines 15m
  • Exercise: What is the key concept needed to solve for lengths in an oblique triangle using given angles?
  • Video class: Advanced Algebra Lesson - Graph Hyperbola and Ellipse with translations 06m
  • Exercise: What geometric shape is determined by the given equation?
  • Video class: Meadowdale vs Shorecrest Track and Field 2h37m

This free course includes:

4 hours and 42 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

100% free, from content to certificate

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