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.

What is the first step in factorizing the expression mentioned in the text?

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Explain the significance of the common factor in the factorization process.

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What does the term 'difference of two squares' refer to in the context of factorization?

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How do you fully factorize the expression given in the text?

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What are the two separate factorizations mentioned in the text?

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