GCSE Secondary Maths Age 13-17 - Algebra: Factorisation - Explained

The video tutorial explains how to fully factorize the expression 20X^2 - 5. It begins by identifying a common factor of 5, which is factored out. The remaining expression inside the bracket is recognized as a difference of two squares, which is further factorized. The tutorial emphasizes the importance of reading questions carefully to ensure full factorization, as partial factorization only earns partial marks. The video also highlights the significance of understanding the difference of two squares to gain extra marks.

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