 • Pre-Algebra
• Algebra
• Geometry
• Graphs and functions
• Trigonometry
• Coordinate geometry
• Combinatorics
 Arithmetics Signed numbers Divisibility Fractions Exponents & roots Percentages Proporcional reasoning
 Monomials Polynomials Special products Equations Word problems - equations Quadratic equations Simultaneous equations Word problems- Simultaneous equations Radicals Sequences and series Systems of 3 variables equations Matrices Determinants Inverse of a matrix Inner product
 Pythagorean Theorem 2-D Shapes
 Trigonometric functions of an acute angle Trigonometric functions of related angles Trigonometric identities Solving right triangles Law of sines Law of cosines
 Equations of a straight line Parallel, coincident and intersecting lines Distances Angles in space Inner product
 Factorial Variations without repetition Variations with repetition Permutations without repetition Permutations with repetition Circular permutations Binomial coefficient Combinations without repetition Combinations with repetition Exercises

Exponential and logarithmic equations
Exponential equations
To solve exponential equations  you need to have equations with comparable exponential expressions on either side of the "equals" sign, so you can compare the powers and solve. Since the bases are the same, then the only way the two expressions could be equal is for the powers also to be the same. That is: Solve :

 Solution: