 Math Help Videos These videos are designed to help you with basic concepts of algebra and math. It is highly recommended that you proceed in the order below as some topics are dependent upon familiarization with the concepts and principles presented in previous topics. 1. Prime Factorization of Numbers 2. Prime Factorization of Mathematical Expressions 3. Greatest Common Factor 4. What Is a Term? 5. Factoring Out the Greatest Common Factor 6. Factoring Out Expressions 7. Factoring by Grouping 8. Factoring by Grouping - Negative Sign 9. Factoring Trinomials - Part 1 10. Factoring Trinomials - Part 2 11. Factoring the Difference of Two Squares 12. Slope of a Line - Part 1 13. Slope of a Line - Part 2 14. Graphing by Slope Intercept Form 15. X and Y Intercepts 16. Graphing Linear Equations by Finding Intercepts 17. Graphing by Using a T-Chart 18. Equivalent Fractions 19. Equivalent Fractions with Expressions 20. Least Common Multiple With Numbers 21. Least Common Multiple With Expressions 22. Adding and Subtracting Fractions With Unlike Denominators 23. Multiplying Fractions 24. Dividing Fractions 25. Simplifying Complex Fractions - Part 1 26. Simplifying Complex Fractions - Part 2 27. Simplifying Complex Fractions - Part 3 28. Mistake 1 - Distributing Incorrectly 29. Mistake 2 - Simplifying Square Roots Incorrectly 30. Mistake 3 - Cancelling Parts of a Sum 31. Mistake 4 - Squaring Negatives 32. Mistake 5 - Simplifying Complex Fractions Incorrectly 33. Why Dividing By Zero is Undefined