2. Algebra
2.1. Polynomials
2.2.3. Quadratic Equations
2.2.4. Exponential Equations
2.2.5. Systems of Linear Equations
2.2.6. Solving Linear Equations
2.2.6.1. Addition Method
2.2.6.2. Substitution Method
2.2.6.3. Graphical Method
2.2.6.4. Cross-Multiplication Method
2.3. Word Problems
5. Trigonometry
6. Functions