Expanding brackest in algebra means you need to multiply the terms inside the brackets by the term (or terms) that are outside the brackets. Below are some […]More…

# Category: Rules & Formulas (R&F)

# (R&F) Algebra – Quadratic Formula

The quadratic formula allows you to work out the solution to a quadratic equation when solving thougth factoring is not possible. Example 1 – Two solutions Example […]More…

# (R&F) Standard Form Notation / Scientific Notation

It is called standard form notation because no matter how big, or small the number is, it is always written in a specific way. For this reason […]More…

# (R&F) Geometry – Parallel Lines (z-angles/f-angles/c-angles)

When faced with 2 parallel lines and a transversal – that is a line that crosses both parallel lines – you automatically end up with a number […]More…

# (R&F) Algebra – Indices

Working with indices can sometimes be tricky if you don’t know the specific rules of indices. This post shows what the common indices convert to and also […]More…

# (R&F) Numbers – List of Prime Numbers

This is the list of Prime numbers between 1 and 100. A reminder that a prime number is a number that has only two factors: 1 and […]More…

# (R&F) is it or is it not a Prime Number

Have you ever wondered whether there is a way to determine whether a number is a prime number? Well! for numbers less than 285 follow these steps:

# (R&F) Geometry – Sine & Cosine Rules

These 2 rules are used with non-right angle triangles. Which one to use will depend on the data you are given.