The Difference of Two Squares

Curriculum support20 mins£3

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.   

Safeguarding reminder:The safety of your child is of the utmost importance. All of our classes are pre-recorded to remove any concerns around live participation. For reruns of our past live classes, students' webcams and microphones were disabled and only the chat history, if participation was requested, is visible.

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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