Factorising quadratic trinomials
Algebraic techniques
Essential Mathematics Year 9
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Lesson notes


  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

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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