Edexcel IGCSE Maths

Revision Notes

1.4.2 Roots & Indices - Harder

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

Write numbers in the question with the same BASE if possible.

Worked Example

Roots & Indices – Harder, IGCSE & GCSE Maths revision notes


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