Algebra
- Khan Academy - Refresher Algebra
- 1.2 - Powers and Roots
- 1.3 - Scientific Notation
- 1.4 - Factorials
- 1.5 - Modulus of a Number
- 2.1 - Laws of Indices
- 2.2 - Negative and Fractional Powers
- 2.3 - Removing Brackets 1
- 2.4 - Removing Brackets 2
- 2.5 - Factorising Simple Expressions
- 2.6 - Factorising Quadratics
- 2.7 - Simplifying Fractions
- 2.8 - Adding and Subtracting Fractions
- 2.9 - Multiplying and Dividing Fractions
- 2.10 - Rearranging Formulas 1
- 2.11 - Rearranging Formulas 2
- 2.12 - Solving Linear Equations
- 2.13 - Simultaneous Equations
- 2.14 - Quadratic Equations 1
- 2.15 - Quadratic Equations 2
- 2.16 - Inequalities
- 2.17 - The Modulus Symbol
- 2.18 - Graphical Solution of Inequalities
- 2.22 - Sigma Notation
- 2.23 - Partial Fractions 1
- 2.24 - Partial Fractions 2
- 2.25 - Partial Fractions 3
- 2.26 - Completing the Square
- Introductory Algebra - Sydney University
- 7.1 - What is a Complex Number
- 7.2 - Complex Arithmetic
- 7.3 - The Argand Diagram
- 7.4 - The Modulus and Argument
- 7.5 - The Polar Form
- 7.6 - Multiplication and division with Mod and Arg
- 7.7 - The Exponential Form
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