Revision Notes

2.4.1 Roots & Indices - Basics

What are indices?

  • An Index (plural = indices) is just a power that a number (called the base) is raised to:

base and power, Edexcel GCSE Maths revision notes

Laws of indices – what you need to know

  • There are lots of very important laws (or rules)
  • It is important that you know and can apply these
  • Understanding the explanations will help you remember them:

Roots & Indices - Basics RN table, downloadable AS & A Level Maths revision notes

Exam Tip

Take it slowly and apply the laws one at a time.

Worked Example


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