The Difference of Two Squares

Curriculum support20 mins£3

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Key takeaways
Understand what a perfect square is
Recognise when to apply the difference of two squares in a question 
Factorise expressions using the difference of two squares
Shahriyar HajghassemHost: Shahriyar is a Maths Teacher at a School in Northwest London, teaching years 7 to 11. He graduated from the University of Warwick in 2013 and set off to China for two years teaching IGCSE and A-Level Economics.

In mathematics, the difference of two squares is a squared number subtracted from another squared number. Applying this to quadratic expressions, students will be able to factorise more difficult quadratics in the form of  (a2 - b2 ). This is very useful topic as it is often included in other areas such as simplifying algebraic expressions and rationalising surds. Students aiming for a grade 6 and above will very much benefit from this topic.   

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Suitable for:

This class is suitable for all students studying Maths in Years 9-11 or S3-S5 who want a chance to practise factorising using the difference of two squares. 

Class requirements:
You will need a laptop or device with internet connection to watch the class, as well as a pen and notepad for taking notes.
What to expect:

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