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Algebraic techniques

Essential Mathematics (Year 9)

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Lesson notes

Chapters

Welcome

Learning objectives

Recap of past learning

RECAP: Factorisation by grouping

3 things can't be factorised very nicely

The T-method

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Harder example doing it backwards

Final words

Description

This is another in the Year 9 series looking at Algebraic Techniques and, importantly, how to expand brackets and factorise a range of expressions. This video looks at how we can build on the previous knowledge and start to factorise quadratic trinomials. I use the idea of the 'T' method to factorise any quadratic trinomial. There are lots and lots of examples and all are explained in an easy to understand way.

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